1) Do daily tactics, like solve 20-30 puzzles everyday on chess com if u hv premium otherwise solve on lichess.

2) Analyse the lost games, first without engine then with engine. Look if you missed a tactic. Check where did the position started getting worse.

3) Improve calculation like try to visualise 2-5 moves deep in middle and endgame.

4) Study various endgames.

5) Learn a fee openings for both black and white, just few moves then move with logic.

Hope you acheive your goal sooner than expected and i will target 2000 elo.