Hi. Not sure I quite understand "not everything is helpful"...but...I am assuming you want some recommendations....and am assuming you are, relatively speaking, a beginner....
So, you say it is your primary instrument. So, what BigHorn are you playing now ? Do you own it, or rent it ?
What musical contexts do you wish to be involved in ? (i.e. are you strictly a sectional player ? Or do you wanna play some lead ?
Jazz ? Classical ? Rock/Blues/Funk/Latin ? That sorta stuff.....)
Do you have a budget in mind ? And what country are you in ?