Man thats the reason I left DZ.com over 4 years ago, the amount of people who put you down is unreal. Jumpin is all about doing what you want. You dont need a coach just do some jumps. At your stage of the game a coach will tell you what you could learn in three jumps in one, If you like jumping why rush it so go do it by yourself. As long as you are aware of where others are its not that big a deal. In my opinion it is ok to be able to figure out how to go up, down, forwards, backwards, turn, flip in both head up and down before getting some coaching in the air as that is all stuff you can figure out asking around, getting a bit filmed getting pointers etc. It is freeflying and as long as you are safe (aware) go for it (with correct kit). Don't listen to these weird ass punk ass bitches saying you should get more jumps before learning to sit its only because they think its hard and only just got it with thousands that they are saying that. Best advice I can give is keep pushing it, trying to do stuff others say you can't just don't put yourself or others in the shit.