hi SwakanthyaaSivan, I'll go through this systematically. At your level, probably the most important thing to study is tactics and endgames.
There are a few things beginners are learning when they study tactics. The most important thing is learning not to blunder. For that, you want to train yourself to see threats, and studying tactics will help you with this.
Next, you'll want to train yourself to get used to calculate. This is a step above simply looking for threats and checks (your own, and your opponent's)
Finally, you want to study tactics so you know how to develop an attack (on the kingside, on a piece, or on a square). For this, you want to study patterns. Even at very high levels, you'll want to train your vision for patterns, but at your level, you'll want to know some of the basic ones, especially patterns of kingside attacks.
Studying endgames will help you in two ways. First of all, it really forces you to calculate - even if it is only to count out the number of moves for queening. More directly, it will help you win more games that get to the endgame because you'll know how to win winning endgames, instead of giving them away, and you'll know when to simplify positions that are clearly winning into winning endgames.
Next, learning how to develop attacks. Learning attacking patterns are critical for developing this skill, but at a certain point, you will find that not every position has an attack, and you will be forced to play positionally. That's why when you get to this level, you have to start studying strategy and planning.
Please also take a look at the following site
https://support.chess.com/article/437-how-do-i-get-better-at-chess
Can you pls tell me some tips for improving chess

???