Disabled trans man getting a wheelchair

Hi, my name's Thomas and I have limited mobility. I've been using a cane to walk for the past two years, since I can't support my weight on one of my legs. I want to get a wheelchair so I can use it to get to my classes and in my personal life, including for wheelchair fencing. I can get to classes now, but it takes me roughly half an hour and my legs are burning by the time I get there. I'm currently working minimum wage and I no longer have financial support from my parents, so I can't afford to get this on my own.