Am I just worrying too much?

So I've been going out with my boyfriend for about 2 months now and we always hang out but the thing is I always worry that our relationship won't last. He's the best guy a girl could ever ask for. He's caring, understanding, athletic, funny and the list goes on... I guess because I find him to be so amazing I don't feel like I'm good enough for him 😅 I'm a person who keeps to myself, whether it be about serious things or not so serious things. So to say I don't talk much when I'm around him or other people would be spot on (at least in my opinion. I've brought it up, he tells me otherwise and also says he doesn't mind it. Apparently it's one of my charms but idk.)

Anyways, today I was just thinking if I should end it because he'd be able to find a person who is just as amazing as he is... the thought of breaking up with him hurts. If you can't tell by now, all my thoughts are muddled. Like one side of me is saying "Don't do it! Everything is going fine so stop being such worrywart!!" While the other is like "If you're already second-guessing this relationship it's best to breakup".

I can't talk to my friends about this because again I keep most of my thoughts to myself and I don't know this seems like something I would never worry about. I'm always chill around them and have a happy face on so nah can't do that. I can't talk to my boyfriend about this because... Well I can it's just I don't have the words to describe what I'm feeling/thinking.

Maybe it's a personal thing I need to figure out? Eh who knows but point is I need advice and some opinions so if you girls could help that would be awesome.