You can do this. Don’t be insecure that you’re “out of it” or “not up to speed” when you get out there. The very best employees I’ve had are ones who care and have pride, which you obviously do. You are not too old. You can offer a business the basics that the kids won’t. You’ll show up on time, you won’t steal, you won’t hide somewhere to check your phone every 5 seconds.
Good luck, be tough, and God Bless!
(You don’t need a pharm tech license to go start out at the major retailers. They’ll train you and offer classes to pass the cert test. Just don’t get stuck there. Once you’ve gotten the cert out of them, look for a more sane position that pays better. VA Hospital, for example.)
The same is pretty much true in optical (retail sales of eyeglasses & contacts) which will many times train you. My wife is the manager of a chain optical shop here.