Question 1: I think despite how things look going queenside is fine, because then you can use your kingside pawns aggresssively. However I didn't like 11...f5, because it takes the pressure off e5 and it just seems that white has more freedom for his queenside attack compared to yours. I would have preferred something like ...g5 followed by ...g4 to undermine the e pawn, and if you can win the center like that then you definitley shouldn't be worried about an attack on your king.
Question 2: It's often good to have this kind of mentality but I don't see why you need to allow white to win a queenside pawn, which significantly weakens your king. I think white should have took the a pawn immediately instead of Bxg7, as ...b6 fails to Ba6+. Then the position would be very interesting: you have lots of mobile center pawns but white is threatening to counter them simultaneously opening the c file (where your king is) with c4. I get the feeling though that you can consolidate your position with something like ...Bc6 and then ...e5 anyway, and if white plays c4 and takes he's just activating your pieces, and if he goes c5 he lets your center pawns march, which should be superior to his queenside ones.
Edit: never mind, if ...Bc6 at any point I somehow missed b5, so maybe the position is dangerous for black after all!
Around move 25 white probably had a winning attack as his pieces are right in the fray compared to yours, I think he just screwed it up.
Lets see. On move 27 dxe6 might be very strong, but I won't try to analyze it because it'll probably be terribly flawed. I recomend you check the game from 25 on with a computer.
Alright, so I answered the questions concerning the general strategy, someone else can look for the answers to questions 3+4 lol, but again a computer would probably answer them very well.
This game was CC, 3 days per move, I played black.
I have various questions that appear in the comments. Any help you can offer would be appreciated.
Thanks!