When I was younger I probably did. It can be hard not to compare yourself to other people, but once I got older, I just realized that none of that matters. It's fine to be inspired by people who have done this for years with lots of training and practice, but you shouldn't beat yourself up over it. If that's the direction you want to go in, you'll automatically push yourself to go in that direction. If it's not for you, it's not for you. For example, I just don't draw realistically. Sure, it looks cool, but it's just not something I do or would want to do beyond fundemental reasons. I'm much more of a cartoonist. I'm not going to beat myself up because I can't paint a realistic picture, but I can appreciate the time and talent that goes into it when someone else can and does.
Essentially, you can probably do anything if you want to do it. Heck, I could probably draw realistically without too much of a problem if I wanted to do it, but I wouldn't be as good at it as people who have been doing it for years. Nevertheless, as I stated, if you want it bad enough, you'll put in the effort to do it. And you'll keep practing it until you get better at it. Along the way, you'll learn some tricks and techniques that'll make the next time easier, too. Never hurts to check out the methods other people use, too, so that you aren't going in totally blind, either!