The thing is, the brain is best at learning how to listen and to form language is best done at beginning stages of life. I got my implants in my 40's after a lifetime of using HA's. I have a hard time learning to listen to sounds needed for understanding speech and I can tell it's cause I didn't...
For me, it was stress at my job that caused me to be depressed. I got lucky and found a great job that has no stress at all. Just something to think about of one possible trigger.
Not me. I grew up with hearing aids then got implants few years ago.
BAHA is for those that don't have working eardrums and/or bones. It bypasses those affecting cochlear using the skull somehow.