Your chess.com live chess ratings are all at or below 1000. That is not bad for a 13 year old. There is no need to misrepresent yourself.
You haven't played much slow chess. It takes practice to get used to taking advantage of all that time. Most kids blitz out all their moves. Try to calm yourself and use your time to ask yourself questions about what your opponent's last move is trying to do, whether your pieces are all protected, etc. Simple steps to help prevent blunders can make a huge difference.
I do not have fide rating. I know the basic tactics and my rating is about 1300-1400 in chess.com approx.
During openings when opponent plays d4 or c4 I struggle. I am good at e4 openings during white but I struggle during black.
My another problem is I do chess tactics in chesstempo and my rating is about 1800 but still I cannot think chess tactics during the middle of a real game. Please suggest what to do in these 2 days.
One more thing is in middle game I do not know what to move. I know basic strategy like controlling center etc. but during middle game I could not find the best move.
When I think too much during a game or get tensed I lose pieces.
What can I do in 2 days to atleast improve little bit and go to state level.
Pls. friends suggest something I can do to improve atleast something. I know little bit about openings, endgames, tactics but still fail.