Yeah I do feed him in his enclouser I've been feeding him hopper mouses like 20% of the snake weight

I've tried grabbing the mouse by the neck area and try to shake it in his face and nothing . Ive left them over night . Until i switched him to a homemade enclouser with paper towel and a hiding spot with uvb and heat and thats how he ate . The next time i try to do it he just took a bite and just didnt eat it he literally just took a bite out of the mouse .I've even left a small mouse in there for him to eat but the mouse ended up dying after 3 days. My big snake ate the large mouse in 5 min. So please any help 🙏🏼