Ah, you may be just the one they've been waiting for to start one.
Short term goal is to get the counseling and mentoring you need to make this huge life adjustment. Don't be embarrassed to take full advantage of VR counseling and training, state programs that offer free communication equipment, ADA accommodations, and anything that will help you thru this transition. Yes, take the ASL classes and associate with your local deaf community.
Long term goal may be that you can continue as a teacher with some accommodations. Or you might see this change as an opportunity for entrepreneurship or taking up a new rewarding profession.
Hang in there. 
