Assist Feeding - It had to be done and now I need advice.

[Bogertophis]

...
The reason I chose to assist feed (I was gentle), is that since her birth weight she has not increased much and she is starting to look malnourished, I have tried mice, rats, F/T, live, I handled her in the beginning as I have found that (personally) human interaction gets them used to feeding with me around (i.e the big scary human thing in the room won't hurt me so I can relax and have my noms)....

Sorry, but you're mistaken. Feeding is "Job 1". Believe me, I am a handler- I like nothing better than to physically communicate reassurance to my snakes but handling disrupts their instincts to eat...because anything that picks them up in the wild is a predator that's about to eat them. Some snakes don't mind handling, but others do & since you cannot tell by looking at them, it's hands off until they've fed easily at normal intervals at least 3 times (& maybe BPs should be more times...?).

I can relate to the fact you are anxious for her to thrive, but shoving food in her face is a set-back, not a step-forward. Leave her totally alone for at least a week*...hopefully she'll start to get in touch with her snake instincts...feed at night, in low light, minimize your motion (be prepared to freeze & hold your breath if she's interested...think ninja), & try what she's successfully taken before. *It would really be best if you wait until she is acting like she might take food...ie. in her hide, peeking out & appearing to hope to ambush her prey. If you feed from tongs, make very subtle motions (to make the prey seem alive) & never approach the snake with the prey...that's not what happens in the real world. You want the prey to appear to be passing cluelessly nearby, & right before you offer this way, do use a blow-dryer to give it some lifelike warmth.

Since you've really stressed her with "assisting", you might have better luck with live feeding, since she is more likely to feel threatened by your presence now.

While I prefer & recommend feeding pre-killed (pk) whenever possible, you really need to get this one feeding if she is truly as thin as you say. In her case, I'd have no problem offering live helpless (!) prey, leaving it in her cage at night- overnight without disruption or observing her. Either mouse fuzzy* or rat pink/fuzzy (very small crawler)*- eyes closed ONLY, is safe, they don't bite back. Snakes often feel braver if they have the 'upper hand'...if they can pounce on prey from slightly above...it helps to leave prey in a bowl-flat bottom so it cannot tip, & sides high enough that they prey cannot escape. *Choose whatever she has taken before. But as I said before, do NOT offer anything for at least a week; no matter how much you want her to eat "now", she needs to de-stress, & that was your doing, but it's a good rule anytime a snake refuses feeding...wait a week or so before offering again. This helps to get them focused as a predator.