I know this forum is flooded with feeding problems, but I'm looking to see what I'm missing with my problem banana hatchling. I'm quite worried about her. I have other BPs and they are awesome feeders.

Her set-up: 10 gallon aquarium with all sides blacked out with dark construction paper except for top 4 inches on the front. Top 3/4 covered with damp towel to maintain humidity at about 60% (with lots of variation, cant wait until her pvc setup arrives). One side heated to 86* using underbelly heat and thermostat. Cozy hides on both sides, water bowl in middle. Quiet room, normal daylight cycle.

What I've tried:
First 5 days after arrived shipped- left her alone to acclimate
Day 6: attempted F/T hopper mouse, heated a few minutes under heat lamp
Day 8: shed (perfect)
Day 12: attempted F/T hopper mouse, heated a few minutes under heat lamp
Day 17: attempted live small hopper mouse for 15 minutes, she acted terrified
Day 22: attempted F/T pinky rat, heated a few minutes under heat lamp
Day 28 (today): attempted assist feeds of F/T fuzzy mouse. She spat it out the first try. The 2nd try she tried very hard to spit it out and it was lodged on her bottom teeth. I had to lift and push the mouse in a little and she spat it out the rest of the way. Worried that her lower jaw may have been minorly injured, but I didn't see anything. (assist feed description- held gently on either side of her mouth while resting most of her body on towel, mouse pushed 3/4 of way into mouth, gently set down and then I didn't move)

She's quite thin. The only other thing I can think of is to move her to a tub of some kind, which I'll go buy tomorrow. I may be trying to often (every 5 days). Any other ideas or suggestions?