You can do it. It seems like all of a sudden, the light bulb really does click on and you can see things so clearly. You've turned the corner and you're going to be fine. Let your son know that you love him, but realize that you won't be doing your son any favors by trying to do for him what he needs to do for himself. Don't do anything you're not completely comfortable with.
You take care of yourself, first and foremost. The rest will fall into place as it should.