The barriers that prevent you from doing what you want to do.

Poor interpersonal skills are leading obstacles to success in making a career transition. If you have no master plan or ?theory of victory you can get lost or fail. If you lack energy or optimism, you lack key ingredients. Depression is a significant obstacle. If you have difficulty distinguishing between what you know and don't know you must acquire these distinctions. if you are a product looking of a market instead of searching for a market that's looking for you, you will fail.

Jumps, hits, handrails, etc., anything a rider uses to throw tricks.