What are obstacles that could prevent you
from keeping a job

There are many. (im going to try to be specific as possbile) You need a good resume. Witch means good handwriting. You need to be smart in that subject. witch might require college. and college is Quite expensive. If your overweight. they may not hire you even if you are experienced. Because people are very judgemental. (Hope this helped!)

Iwould put 'think' in the blank