Opening Reportoire for Beginning Tournament Player

Hi everyone, this is my first post here on Chess.com and it concerns the openings I've been focusing on and wheather they are a good combination of openings to study. I'm 20 years old and I will be joining my first chess club in a few weeks and will hopefully start playing tournaments at this time. The openings I've figured I want to focus on are as follows:

1. Four Knights
2. French
3. Caro-Kann
4. Sicilian Najdorf
5. Sicilian Dragon
6. Sicilian Sveshnikov
7. Sicilian Taimanov/other e6 variants 
8. Berlin Defence
9. Two Knights Defence
10. Grünfeld Defence

Basically I want to open e4 as white and the first 7 openings are those I want to be prepared to play as white depending on black's response. I also wish to answer e4 with e5 and I've been enjoying Berlin Defence against Spanish and Two Knights Defence against Italien. Grünfeld is my defence of choice against d4.

Please keep in mind that as an unexperience player when I say "study" I mean to go through the first 8-12 moves or so of each opening and then study a few professional games or videos to get a hunch of how I should further develop the middle game depending on the position.

So my question is basically if the above seems like a reasonable plan or I should add more to/remove some from the openings above.

I'm also aware of the fact that general tactical knowledge and understanding of the principles might be the most important thing at my level, but I'm currently working my way through books like 'My System' by Nimzowich and 'Silman's Complete Endgame Course' by Jeremy Silman. In addition I am working with the tactics trainer here on Chess.com and play a few blitz games here and there even though I really prefer to play live in person. I just want to have something of an opening reportoire that I can work to perfect rather than only playing from the principles.

p.s. I hope this was the right section of the forums to post this.