I have been playing for 5 years and I`ve taken lessons for two but for some reason I still have air leeks every now and then. I know I need to tighten my ambusher but are there any hints on how I can do this... because just practice doesn`t seem good enough. Any hints would be greatly appriciated. Thank you

You`ve got to specify your instrument -- clarinet? saxophone? brass?

Yah that might help:P I play trumpet