Is playing the Closed Sicilian a good way to keep the game in solid lines against the Sicilian?

I have been playing 1. e4 for my entire life. My opponents play the Sicilian, the French, the Caro-Kann, and the Open Game against me. Suppose my opponents respond with 1...c5(which I have experienced a lot). I, a positional player, have played the Open Sicilian simply because my opponents played it against me and I gained some knowledge about the ideas. However, I have recently noticed that my opponents almost never play the Dragon(the opening which I have studied most deeply), and instead play the Najdorf, Sveshnikov, and Paulsen. I have been successful against the Najdorf but I struggle a lot against the Paulsen and Sveshnikov. I am deeply considering switching to the Closed Sicilian to avoid these complex, sharp, unfamiliar lines. In a tournament game, I played the Closed Sicilian with white and lost in a complex ending because I rushed to break my opponent's pawn structure in an attempt to activate my pieces. Before another game in the same tournament, I contemplated the idea of playing another Closed Sicilian simply because I have learned the lesson from the aforementioned tournament game. My father argued with me and I ended up succumbing to him, playing an Open Sicilian, having to meet a Sveshnikov, and getting crushed. I am a positional player and I don't want to drown in the complications of a sharp opening(especially the Sveshnikov). Should I switch to the Closed Sicilian?

First game above, second game below

I am not an experienced trainer or anything, but I can perhaps call your attention to some alternatives that are available:

My First Chess Opening Repertoire for White
https://www.newinchess.com/media/wysiwyg/product_pdf/9033.pdf

"... White: ... 1.e4 c5 – Grand Prix Attack ..."
https://chessbookreviews.wordpress.com/tag/vincent-moret/
Opening Repertoire 1 e4

"... 1. On 2...d6 we enter the Moscow Variation with 3 Bb5+. 2. On 2...Nc6 we similarly play 3 Bb5, the Rossolimo Variation. 3. On 2...e6 we opt for 3 c3, transposing to a line of the c3 Sicilian. ..."
https://www.newinchess.com/media/wysiwyg/product_pdf/7819.pdf

A Simple Chess Opening Repertoire for White

"... International Master Sam Collins ... has White playing the c3 Sicilian ..."

http://www.jeremysilman.com/shop/pc/A-Simple-Chess-Opening-Repertoire-for-White-76p3916.htm

http://www.gambitbooks.com/pdfs/A_Simple_Chess_Opening_Repertoire_for_White.pdf

One option you have is to play 2. Nf3 and then enter a regular open Sicilian if you see 2 . . . d6, since you say you're comfortable agains the Najdorf and Dragon.

Then, you can take a closed Siclian route against the second moves (2. . . . Nc6 and 2. . . . e6) that lead to the Sveshnikov and Kan -- so 3. Nc3 or 3. d3. or 3. g3.  Against 2. . . . Nc6, you've also got the option of the Rossolimo (3. Bb5).

The second game(where I got crushed against that Sveshnikov when I wanted to play a closed Sicilian) is below.

It's probably worth being pedantic and pointing out that this is a Kalishnikov, not a Sveshnikov (because Black didn't play Nf6).

It looks like the main problem was just one miscalculation, which, against a strong opponent, is enough.  14. Rd1 is clever, but I guess you missed 15....Nc6, covering the pawn and the queen.  What to do instead?  I agree that trading on d5 looks bad for White, and 14. c3 exd4 yields a tough, though playable endgame.  Probably something more active on move 12 is called for (and ideally something less oppressive to your light-squared bishop).  Castling makes sense.  In these lines, c2-c4 is also often an idea, when your opponent can't play b5-b4.

But it doesn't seem like you played it cluelessly.  You just ran into a strong opponent, who was able to punish small errors.  So it seems to me you're up to the task of battling these lines, if you want to.  Ultimately, it's a matter of preference.

@OP open Sicilian is more popular for a reason. Is better.

"... There is no doubt in my mind that if you really want to test the Sicilian then you have to play the main lines of the Open Sicilian. The problem is that there are just so many of them ... and keeping up with developments in all of them is a substantial task. ... as you become older, with other demands on your time (family, job, etc.) then it becomes more and more difficult to keep up with everything. At this stage it may make sense to reduce your theoretical overhead by adopting one of the 'lesser' lines against the Sicilian: 2 c3, or the Closed Sicilian, or lines with Bb5. ..." - GM John Nunn in part of a 2005 book where he discussed a 1994 game in which he had played 2 c3.

Any of the following should be fine choices for those who don't enjoy playing the open Sicilian as White....these are excellent introductory books on their respective openings....anything by these authors is typically good, well written...

Starting Out: Closed Sicilian by Richard Palliser...

https://www.amazon.com/Starting-Out-Closed-Sicilian-Everyman/dp/1857444140/ref=tmm_pap_swatch_0?_encoding=UTF8&qid=1567053123&sr=1-1

Starting Out: Sicilian Grand Prix Attack by Gawain Jones...

https://www.amazon.com/Starting-Out-Sicilian-Grand-Attack/dp/1857445473/ref=sr_1_2?crid=26AVPU5RFIVF0&keywords=starting+out+sicilian+grand+prix+attack&qid=1567053378&s=books&sprefix=starting+out+grand+%2Cstripbooks%2C205&sr=1-2

The Sicilian Bb5 Revealed by Neil McDonald...a good introduction to this variation...

https://www.amazon.com/Sicilian-Bb5-Revealed/dp/0713489804/ref=sr_1_1?crid=NG5CCR9B6Q8G&keywords=the+sicilian+bb5+revealed&qid=1567053891&s=books&sprefix=the+sicilian+bb%2Cstripbooks%2C209&sr=1-1

How to Beat The Sicilian Defence by Gawain Jones...an anti-Sicilian repertoire which covers the Bb5 Sicilians (Moscow & Rossolimo Variations), and also the King'g Indian Attack against Black's early ...e6 lines...

https://www.amazon.com/How-Beat-Sicilian-Defence-Anti-Sicilian/dp/1857446631/ref=sr_1_1?keywords=how+to+beat+the+sicilian+defence&qid=1567054023&s=books&sr=1-1

The Bb5 Sicilian: Detailed Coverage Of A Thoroughly Modern System by Richard Palliser...

https://www.amazon.com/Bb5-Sicilian-Detailed-Coverage-Thoroughly/dp/1857443977/ref=sr_1_2?keywords=the+Bb5+sicilian&qid=1567053599&s=books&sr=1-2

Starting Out: The c3 Sicilian by John Emms...

https://www.amazon.com/Starting-Out-Sicilian-John-Emms/dp/1857445708/ref=sr_1_3?keywords=starting+out+the+c3+sicilian&qid=1567054326&s=books&sr=1-3

If you are interested in learning the Sicilian Grand Prix Attack an excellent, instructive introduction to the variation is provided in Vincent Moret's My First Chess Opening Repertoire for White (as mentioned by Spongey earlier).....check my book review (as RLBell) here...

https://www.amazon.com/First-Chess-Opening-Repertoire-White/dp/9056916335/ref=sr_1_1?crid=I0E1E36AETVD&keywords=my+first+chess+opening+repertoire+for+white&qid=1567055223&s=books&sprefix=my+first+chess%2Cstripbooks%2C194&sr=1-1

Chessable has produced an interactive online course based on Moret's book....

https://www.chessable.com/my-first-chess-opening-repertoire-for-white/course/7543/

https://www.youtube.com/watch?v=f41ZbPq9OpE

more Sicilian Defense courses for both Black and White on Chessable....

https://www.chessable.com/chess-openings/s/sicilian

Kalashnikov is basically accel. Sveshnikov

I will show you another game where I got crushed against a Sveshnikov. I said about this game that I "played like a 1453"

For the OP and others who are not experts in the particular opening, It's about learning how to play the opening - it's fundamentals, principles, themes, and plans.  When you get to the point of needing to play the opening, and the game, at expert level, against opponents who can also play at expert level, then you can begin to worry about learning the most recent theory.

For those wishing to keep abreast of the latest in opening theory an excellent resource for that purpose is ChessPublishing.com...

https://www.chesspublishing.com/content/

How is this not a Sveshnikov, pfren?

Playing 3. Nc3 can lead to more Spanish type positions. The knight often reroutes via e2 to g3 in ordner to free up the c pawn, which should support an eventual d4 break or just stay there next to a pawn on d3 to keep the center flexible and control some central squares. 2. Nc3 can have the same ideas, but also retains the possibility of playing the Grand Prix attack with f4. Statistically you will get more Closed types of positions similar to the Chigorin variation of the Ruy Lopez, especially on the queen side (when playing 3.Nc3). White should time breaks in the center while black often plays on the queen side. The Closed Sicilian is generally considered more strategic, but things can get wild and open in the middle game when breaks happen, but I guess that's the case with any opening.