All the stuff I enjoyed is gone, and everything they make now seems so empty and pessimistic now.
Eeeeeh. First of all, all the stuff you liked is still there.
But also good stuff is rare. You really need to know where to look and which tips to follow. For example, if you disregard anime as a whole, you've probably missed absolute 10/10 media experiences you can't find anywhere else. Sometimes it's about leaving your comfort zone and trying something new.
But then also, about the only really good star wars content we got in the last... 30 years is Ep. 3, the clone wars animated series (later seasons) and Andor. And they made SO MUCH.
Also, maybe you should make your own. If you like the old stuff so much, try to make it yourself and give it a spin. get close to it, recapture, reinterpret, re-imagine. Maybe you'll do that for 15 years, go back to your inspiration and find that your "imitation" has surpassed it.
Necessity is the mother of invention. If you're bored make your own.
You have all the blueprints for the stuff you like. What else are you going to do? You can watch reruns, of course... not sure if it will be equally satisfying though.