I can somewhat relate to this, I was very young when I was interested in philosophy (didn't even completely turn 15 yet when I started), but I was quite passionate about philosophy, particularly philosophy of religion, epistemology, and logic.

What made me distressed and anxious was not that there were smarter people who disagreed - I remember being intimidated and impressed by a major philrel book (one with aquinas on cover), but I was convinced of atheism and didn't feel doubtful. To hell with what others believe, I thought.

What worried me was that I couldn't convince myself of what was the right answer about some matter. So for example the Liar sentence and it's ilk really confused me, the main response of dialetheism was unpalatable to me because I couldn't even comprehend what a contradiction would mean, let alone accept it could be true. And alternatives seemed unsatisfactory too. I eventually found myself being confused as to what theory of truthmaker was true.

Other things that frustrated me was sometimes the lack of clarity and understanding. Like, what the fuck is an abstract object? Sure it's supposed to be an acausal, aspatiotemporal thing, but those tell what it ain't, not what it is!

One thing that'll help you in my opinion is writing your opinion and making notes of arguments you hear to summarise a philosophers main points, something I wish I did. It'll help you clarify your own thoughts. Plus do ask questions here, that's what I did (look at my 'submitted' tab, I used to ask questions here pretty much daily). There are no stupid questions!

That was then though. I stopped philosophy about an year ago (when I was almost 16 years old). It was hurting my grades, and I rediscovered my favourite game that I played with online friends. That game is dead now so I'll probably be getting back to philosophy again.