I relate to you a lot, to be honest, minus the worry about potentially losing the love for the fashion; I'm not a lonelita but I don't see my comm often and wear the fashion daily so I do feel like one, and after being into the fashion for about a decade without once feeling like the fashion is losing its magic to me, I think that getting in touch with what makes you happy about lolita will be good for you.
As a side note, I do want to add that sometimes you just stop loving things that you loved for a long time, and that's okay. People change and grow and you won't always like the same things, after all. I'm not saying you should drop lolita immediately if it doesn't make you happy anymore, but try not to worry about it so much because sometimes things change and that's okay.
Anyway, other than getting in touch with your roots (consuming nostalgic media helps a lot with this btw), I'd suggest trying something new with the fashion: If you don't wear it casually, try to do that when you have free time. If your style is fairly consistent, try introducing another style or at least another color into your wardrobe - You can start by just photoshopping your existing coord pics into different colors to see what else might suit you, or maybe play around with makeup or a new hairstyle. Trying on new coords at home to channel some creativity is fun and can help you find something new that you like, it's another way to find that spark of magic.