Im 22 and my mom doesnt want me to leave home again.

I got out of the military in January. i was away from home for four years. but i feel like im ready to leave again. I live in a small town in Missouri and ive always wanted to go to the city. I get my college paid for so i could go anywhere. only problem is my mom. She wants me to stay with her and shes constantly making me feel awful about wanting to move away. I love my mom but i want to experience the city. (im looking at moving to Boston) is this wrong of me? i feel torn at satisfying my self and then making my mom happy. She also used my dogs old age as leverage. any advice would be appreciated. I feel very lost and torn. thank you in advanced!