Trapped in Class C

quit

You've played over 1600 blitz games and 4 Daily games.

What was the question again?

As a C player myself, I can not do more than guess about what you should do, but it might help others to help you if you give some details about what you have been studying. Also, a sample of one of your losses in the analysis section.

https://www.chess.com/forum/category/game-analysis

Of course, slow games are usually regarded as being best for improvement.

Go to Washington Square Park , play everyday, you will no longer be a c player.

1600+ blitz games, and 35 rapid ones...

It should be the other way round.

Try not to drop into Class D.

One can get some idea of the lasting scope of the respect for My System by looking at:
https://www.chess.com/article/view/the-best-chess-books-ever
Still, it might be noted that My System apparently did not occur to GM Yasser Seirawan as something to include in his list of personal favorites, and Aaron Nimzowitsch was not identified by the GM as a very worthy author.

https://www.chess.com/blog/RoaringPawn/an-open-letter-to-the-four-time-us-chess-champion-gm-yasser-seirawan

https://www.chess.com/blog/GMYAZ/open-letter-response-user-radovics-letter-to-me

My System has accumulated some direct negative commentary over the years.
"... I found [the books of Aaron Nimzowitsch to be] very difficult to read or understand. ... [Nimzowitsch: A Reappraisal by Raymond Keene explains his] thinking and influence on the modern game in a far more lucid and accessible way. ... The books that are most highly thought of are not necessarily the most useful. Go with those that you find to be readable; ..." - GM Nigel Davies (2010)
In 2016, IM pfren wrote:
"My System is an iconoclastic book. A lot of things in there is sheer provocation, and it does need an expereienced player to know what exactly must be taken at its face value.
I love 'My System', and I have read it cover to cover one dozen times, but suggesting it to a class player is an entirely different matter."
Also: "[Some things] ARE wrong, and it's not easy for a non-advanced player to discover those wrong claims.
Nigel Short has claimed that 'My System' should be banned. Stratos Grivas says that the book is very bad. I don't share their opinion, but I am pretty sure that there are more useful reads for class players out there."
Although he is a fan of My System, IM John Watson similarly acknowledged (2013) that:
"... Not everything in it has stood the test of time, ..."
http://theweekinchess.com/john-watson-reviews/john-watson-book-review-108-of-eplus-books-part-2-nimzowitsch-classics
One last point to keep in mind is that, even if My System would eventually help a player, it might not necessarily be helpful to a player now.
"... Just because a book contains lots of information that you don’t know, it doesn’t necessarily mean that it will be extremely helpful in making you better at this point in your chess development. ..." - Dan Heisman (2001)
https://web.archive.org/web/20140626180930/http://www.chesscafe.com/text/heisman06.pdf

"... Ideas Behind the Chess Openings ... cannot be recommended to the modern student seeking to improve his or her understanding of opening theory."

https://web.archive.org/web/20140708112658/http://www.chesscafe.com/text/review315.pdf

About half a century ago, I think the Fine book was considered to be nearly essential reading, but now, I fear that its information is seriously out-of-date. Also, I do not think it has much in the way of sample games.

Here's my take on My System, until I read this book I had no idea of the following:

1. Blockade/Over Protection

2. The Bishop Pair

3. Hanging Pawns/Pawn Chains

4. Weak Squares

5. 7th rank

6. Prophylaxis

Regarding Fine's Book, it put me on the path to recognize openings, however it did nothing to help me understand how to punish anyone that goes out of book openings.

I have forced myself to play a little slower and this has helped my game a little. Yesterday, I eclipsed my highest blitz rating of 1619 then I played a bit more and dropped a few points. During my days of playing in USCF tournaments, I played around a 1600 rating with slow time controls. Perhaps my best way towards to improvement is to play slower. My goal is to become a stronger B class player in blitz.

Hit the nail on the head. There was a book '10 Ways to Improve your Chess' or something close to that. Really good practical suggestions. Stuff like play higher rated opponents, physical fitness, study time etc.

One of the authors points was that blitz was detrimental especially below 2400. He believed blitz teaches bad habits (playing instinctive moves instead of thought out ones, not focusing on endgames etc.) He recommended adding 1 minute for every 25 points below 2400 the player is.

(2400-1600)/25= 32 You're telling my games should be at least 32 minutes. Or 32 minutes added to classical tournament time controls?

Yeah between 30-35 minute games should be your fastest games, you have to adjust some to find available opponents.

The book is by Nigel Davies,