you just started last feb? look pretty good to me. if you're just starting, try not to worry too much about ollieing or popping off the jump. just go really fast and let the jump do most of the work. once you're comfortable with hitting jumps at a good speed, which judging from the video, you actually are, then think about ollieing or popping.
try not to flail your arms in the air or when you come down from the jumps. looks like you're coming down really hard on some of those jumps. but then again i'm guilty of the same thing. I tend to flail coming out of my grabs myself.