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It's probably impossible to regain the innocence of youth, the hype for things you didn't understand well enough, etc. That's hardly all there is to it when it comes to enjoying anime, however. One probably just learns to love stuff in a sustainable way.
Start learning Japanese and get into VNs, manga and perhaps other related mediums; also go for live action movies at the least (not adaptations, but I guess those are cool if you're interested). Don't forget to enjoy stuff from other countries, as well. It's a probably good idea to have at least a bit of contact with content made for different demographics, like shoujo and josei as a male.
If you're not sure you want to commit to something, consider checking out reviews without spoilers to see if the thing is indeed for you. Don't binge watch and actually watch what you're watching. I see too many people around here that want to have stuff playing in the background while they do something else, and I've seen others playing anime at >1.00 playback speeds, too. I personally don't consider dropping not-currently-airing series to be a good idea. I'm not saying you should become picky and snobbish (don't watch dubs, though :^), but if you find yourself breezing through a great many series, especially because of the aforementioned problems, you should rethink your strategy.
It's also good to consider creating stuff. Not necessarily as a full time hobby, maybe it's just something you gave a few honest shots. For an anecdote, over a decade ago I was making shitty WoW PvP movies, and making them was enlightening for me, to say the least. I had times when I was laughing like a maniac for over 5 minutes because some things just clicked perfectly, or how well some crazy ideas worked. I definitely see media differently because of that experience and I had a ton of fun as well. Learning Japanese is also very invigorating on occasions.
All in all, you shouldn't forget that lolis need a lot of cake and hugs to survive.