What do i do in this position?! I'm stuck and need your help! (10 points)?

As long as you got your life jacket on you wont go no where. Im 14 and ive using them all my live and nothing has happened yet. If you were to get pushed off you wont go no where. But you with go uder for like 2 seconds because of the pressure. But other than that you shouldnt have anything to worry about. Hope i helped!