Yours, indeed.

Create art (drawing, painting, sculpting, writing, poetry, etc)

Cosplay or dressing in costume

Fabric work (sewing, knitting, crotchet, embroidery, etc)

Engage with/create fan works (reading/writing fanfic, looking at/drawing fanart, etc)

Listen/dance to music

Dance to no music to your own beat!!

Play video games

Read a book

Study (but don't stress about it)

Cook/bake something

Hang out with friends, physically or through a video call/groupchat/whatever

Meditate

Practice religion

Workout (be safe and don't stress yourself out my friends <3)

Binge a movie/tv show

Practice some self care (whatever that looks like for you, but common ones are showing, drinking water, eating enough, affirmations, etc)

Go outside (can do one or multiple of the above while doing this)

Alternatively to the above, open a window for some fresh air