Why do I suck at skating?

I've been skating for like 2 years now, just here and there. No matter how hard I try i can almost never land a trick. I don't know whats wrong, it's so FRUSTRATING. I can barely ollie. Can't even ollie over anything or off anything. I don't think I'm scared to get hurt cuz I get hurt all the time. I can land kickflips like 3 percent of the time. I landed a couple varial kickflips once but i was barely moving. HOW COME I SUCKKKKK??