I’m sorry but he can’t live under your roof and do as he pleases. If he want to be an adult then treat him as one. Get himself a job and stay paying bills and change your locks and don’t give him a key. If he want to leave then let him
Submit your prayer request. Thousands of caring people will see it and pray for you.
Ask him to go on walks with you and encourage him to lose the weight it may help his confidence. I pray he gets through this Amen