You either need a much smaller enclosure, or many more hides, along with lots of nooks and crannies for the snake to retire to and de-stress. Also, assist feeding is extremely stressful to the snake, and potentially very dangerous for the snake, as well. It should only be considered when the health has deteriorated considerably due to lack of food, all husbandry factors have been perfected, and it should only be done by someone with experience.