If Chofetz Chaim is an option for you, I don’t see why the fact that it’s not an easy walk to the beis medrash should stop you; surely the situation would be better for you than it is now. I also wonder if using the dormitory, at least part time, would be an option for you.
Don’t be angry at your parents. Surely every decision they’ve made for you
has been with your best interest at heart. Hopefully, they will be open-minded enough to support you in the decisions you have made and the path which you’ve chosen to follow. Certainly any antagonism shown on your part would be unwarranted, and likely to cause resistance.
Hatzlocha!