Should I quit skateboarding ?

Ok, I've been skating for about 2 and a half years or maybe a little bit more, but I am still not good ! I can only skate flatground, and I barely go to my local skatepark, because it is on the other side of town. This is why I can't really practice skating ramps and other stuff like that. The only tricks I can do is an ollie,pop shove it, a very ugly kickflip/varial kickflip, and im currently working on landing a frontside pop shove it moving. I know I really suck, considering the lack of tricks i can do and how i am only able to skate on flatground. I'm starting to think that maybe skateboarding just isn't for me. Besides, I'm sort of the kind of person that gets scared to get hurt/injured badly, which isn't good for me, since i really want to be able to skate over gaps, stairs, handrails, and HUGE drops. Yet, I still find myself on youtube watching skate videos of the pro's, even though I frequently think about quitting because i'm just not as good as i wish/expected to be, and i've been skating for almost 3 years. It's very irritating when I see my friends that can skate, who haven't been skating for as long as i have, who can already do more advanced tricks than i can and could skate more than just plain flatground. What do you guys think I should do honestly ? Should I quit ??