What are some good hobbys/fun things a online highschooler can do?

My intersts keep changing everyday and that is annoying me, i just need one thing that is easy but effective that i can work on doing. i have a problem with bordom becasue im almost constantly bored and i need something to ditract me from when im down.

is there something you can think of that is cheap or free also im autistic and dylexic and i usally make post about boredom.