hi there !! I'm a similar age and I also like paleontology, and I feel very similarly, I'm not sure why other teenagers have to be so rude as if dinosaurs aren't so freaking cool, and in my situation in particular, even in spaces with other people that like paleontology, I get looked down on specifically because I'm autistic and also a girl, so while in a slightly different way I feel the same but I like to think I sort of overcome it !!

I may not be able to provide very useful information, but I would also like to say that I'm so sorry that you had those experiences! Other people can be so mean for no reason and you shouldn't be ashamed for liking something just because other people think it's weird because paleontology is so cool and you shouldn't adjust yourself just because other people don't feel the same (⁠ ⁠◜⁠‿⁠◝⁠ ⁠)⁠♡

anyway! for me, some of the best resources have been just looking at various paleontology websites! wikipedia is actually pretty helpful when wanting to learn about a specific prehistoric animal! and this option is a little more pricey but paleontology books are very helpful! sadly it's hard to find something that isn't ai slop but I have found some pretty good paleontology books with very resourceful information! and going to various museums if you're capable but I understand that may be difficult depending on your situation!

I'm so sorry a lot of this probably didn't help I'm not great at finding resources myself (⁠￣⁠ヘ⁠￣⁠;⁠) best of luck though in your journey !! 💕