How do you guys stay optimistic? It's tough

Sometimes I feel like whatever I'd do it won't be enough. What/where I buy or where I donate seem trivial in the larger scheme of things. From extreme power concentration to world hunger. From climate change to AI safety. Too many things that I'd like to change, but I feel powerless sometimes. The feeling comes coupled with a sense of guilt of not doing enough and not being enough. Do you guys get this feeling too? How do you deal with it?

I do believe in the necessity of optimism in order to affect change, but sometimes hope is hard to cultivate. How do you guys keep your optimism up?

Thanks for reading my mini-rant.

Also, the meme is not OC