How Can I Improve In Chess?

I'm 900 Elo how can I improve? What openings should I use and how should I play?

Any Suggestions 

I would recommend practicing puzzles and being creative and solid with your chess style and openings

try London system, you will gain more elo than you could imagine.

The best tip that I could give to a player of below 1000 is that you should try the london as its the most solid opening you could see and as black you could play caro kann, its easy to play and learn. in the middlegame just try not to blunder and see what your opponent is threatning on the next move and neutralize the threat. In the endgame, walk your king , try to create a passed pawn and don't fall into any checkmate tricks. This is on my personal experience and this would help you reach atleast 1500.

I CREATED MY OWN OPEN MYSELF ITS LIKE A VARIATION OF ENGLISH OPENING AND DRAGON

CAN BRANCH INTO MULTIPLE VARIATIONS DEPENDING ON OPPONENTS MOVES ID BE HAPPY TO TEACH ANY1 B4 I DIE I WAS ALWAYS TAUGHT TO SHARE WHAT WHAT TAUGHT TO ME AND IM GETTING OLD ID LOVE SOMEONE TO LEARN IT B4 I DIE

IT TAKES 1 PAWN SACRIFICE BUT NORMALL U GAIN A PIECE AND CAN JUST SWAP OUT PIECES IF U FEEL THREATIND I DEFINATELY USE BOTH MY BISHOPS AND TRADE 4 THERE HORSES KNIGHTS ARE WAY MORE DANGEROUS IMO

BISHOPS ARE STUCK 2 A SINGLE COLOR SO SAY IF THEY GOT 1 BISHOP LEFT ITS EASY TO JUST STAY OFF COLOR TO COMPLETELY NEGIFY THE BISHOP I ALSO AM NOT AFRAID TO SWAP QUEENS CUZ LOTS OF PEOPLE CANT PLAY WELL WITHOUT 1 AND HELPS IF U NO HOW TO WALK AND PREMOTE PAWNS WITH THIS TACTIC EVEN IF I LOSE ITS FUN AS HELL TO PLAY IM OLD AND LOSEN MY TOUCH BUT ITS DEFINATELY WORTH PLAYING AROUND WITH .THE OTHE OPEN I LIKE IS WHEN U SACRIFICE 3 DIAGNAL PAWNS 4 BISHOP POSTIONING ON KING SIDE FORGET THE NAME BUT HARD AS HELL 4 BEAT