Welcome ! The baritone is the ideal horn to improve at least 2 essential skills:
1. Air support
2. Relaxed embouchure
If you can, blow A LOT of air, make that thing sound like hell. Long tones, or just real music, slow enough (ballads) so you can hear your sound. Find out how you can really relax your embouchure.
Surprise, you’ll improve your ability to whisper on the big horn.
In my case, it helped to move to less bite on all horns, clarinet included. And to push air even when playing pianissimo.
Great horn all the way.