Don't know if this will help, Ciara, but I've been in similar situations. If you look at it from her point of view, you are there temporarily, to raise money to escape to a much better future - she is probably stuck there packing chickens for life, so there is probably a fair bit on envy there on her part. Not that that makes her behaviour acceptable, just understandable.
If you can, try to seek her help wherever possible. Make her feel as if she can do some things better than you can. Swallow any pride you may have and ask her advice about things - you don't have to listen to the answers. Make out you're a bit dumb if necessary to give her a chance to feel superior. OK - it's a bit fraudulent and hard to swallow - but keep your eye on the money, and your eventual escape.