HELP trying to stop breastfeeding

My daughter is almost 10 months. She was born January 26th, 2016. I've been STRICTLY breastfeeding the whole time. No bottles or formula. She doesn't like bottles. Not even with my milk. I pump and she won't drink it unless it's from my boob's. I don't want to nurse anymore tho. She's my first baby. I feel I've did a good job nursing her so far. I'm tired. She's getting heavier which is hurting my back. She's teething and that's hurting me too. So my question is. Can I give her regular milk? Or maybe almond or soy milk. I've only tried 1 type of formula cuz its expensive. Can't just keep buying different kinds and wasting it. I tried Similac(the one closest to breastfeeding) the powder and pre-made formula. She didn't like it. What can I give her?!