I am a originally woodwind-based, playing instruments from Bb clarinet to BBb contrabass clarinet, alto sax to bari. sax, dabbled in flute...   
I've recently started high school... and was dissappointed to learn that although i was a valued concert performer... marching band was primarily brass territory ... listening to my senior mentor I'v set myself up for falliure by migrating to a marching baritone horn lmao... 
I have only been playing for 2 days... I know my fingerings and have played my Bb major scale (with difficulty  lol)... I have problems finding the open notes (c,g,c, etc.)... 
If anyone has any tips for me, I would greatly appreciate it...