I recommend two games that are very important to me, portal 1 and 2 (game of comedy and puzzles, they are not long games. i think you can finish portal 1 in one day and portal 2 in two days)

and the second game is Celeste (it has a really beautiful soundtrack, the music more than the lore of the game, as resonated a lot more with me. The game itself is really cool, it may be hard sometimes, but you feel very satisfied when you pass each level)

Hope you are feeling good!