Simple guide to improve your chess level
1. Save your games in a database, study or collection
2. Review your games every week.
3. Take your time. It's not about letting the engine show you the best move. It's about understanding the source of the mistake
4. Audit your game, and point out your weaknesses and strengths.
5. Select the material (books/videos) to learn how to fix the weaknesses of your game
6. Repeat every next week
Easy peasy