Let me clarify my OP , because it was kinda wordy Treatment resistant mood disorder and Appeared during childhood or adolescence OR caused by a childhood trauma of some sortsYou have to talk to a doctor who ' s familiar with it , either a psychologist or an anesthesiologist , to see if it ' s right for you I sound like a pharma commercial but those are the general criteria . Treatment resistant mood disorder caused by stunted mood center growth in childhood or adolescence . If you ' re young , like me I ' m 18 it ' s the best time to start it . <| sep |> For being in the moment it really helps me to just close my eyes and breath for a second . Then focus on my breath until I go to shoot next . In a long term suggestion I try to play racks and act like I ' m playing a tournament . For example when and if I screw up a shot or , more often , make a mistake on positioning I try to analyze everything that went wrong then . It makes that internal pressure more bearable and makes the nervousness a bit more normal and easy to deal with .