hey everyone I am a trombonist and have been playing about 3 and a half years now. I went through about a 2 month period of not having a teacher and my technique has suffered as i havent been correcting myself properly. However my bigest problem is nerves, apprently it is becuase i am too much of a perfectionist but im having real problems playing at the moment as i keep seeing mistakes everywhere and think am going to get things wrong. I cant pinpoint the reason but its stopping me from getting anywhere. any comments or suggestions would be great. Thanks.