Why is it so hard to learn to ollie >:(?

I skated for 3 months no commitnligy for a summer i learne d to do an ollie a dshitty one on place tooke me like a month on one i bought at a 99 cent store it took me like a week to learn to ollie now i can bs and fs 180 ten stairs and gaps after 3 years man dont give up u'll get there its hard becuase its your first trick its the hardest tes your gonna have until you try your first skect gap or stair set or drop in.