I've found that writing lists of goals I have for self-improvement or just goals in general help me feel a bit better. Make a list of your own if you want. Doesn't matter how long or short your list is, and you can of course add more as often as you like.

mine:

1) exercise more
2) become fluent in French
3) live instead of merely existing
4) force myself to find something positive, and allow myself to smile about it
5) make more friends
6) stay sober
7) sit with my feelings, don't react
8) start journaling regularly
9) stop being so hard on myself
10) learn to control my obsessive thoughts
11) accept that I can't be perfect but understand that that doesn't mean I'm worthless either
12) love myself
13) expose myself to social anxiety-inducing situations & overcome social anxiety
14) forgive myself

and adding more.