You should continue playing chess if and only if you feel that your quality of life is higher if you do so than if you don't.
Unless you consider achieving a high lichess rating as a goal in itself, there is no rational reason to worry about your results, and you can play chess if and only if it is fun for you in this case.
If you do consider achieving a high lichess rating as as a goal in itself, it is advisable that you follow classical avenues for improving your chess. This includes studying endgames, middlegames as well as learning opening ideas. Possibly following courses, reading books such as Dvoretsky's Endgame Manual, etc.
Playing many online games may also be a way to improve your chess, however, this can be accelerated by active study.
Unless you consider achieving a high lichess rating as a goal in itself, there is no rational reason to worry about your results, and you can play chess if and only if it is fun for you in this case.
If you do consider achieving a high lichess rating as as a goal in itself, it is advisable that you follow classical avenues for improving your chess. This includes studying endgames, middlegames as well as learning opening ideas. Possibly following courses, reading books such as Dvoretsky's Endgame Manual, etc.
Playing many online games may also be a way to improve your chess, however, this can be accelerated by active study.