Going to need a bit more information here. Do you have any formal education post high school? What kind of jobs have you worked in the past (experience-wise)? What are "mom's hours"? Also, please never set foot in a rent-a-center. Their entire business model is way overcharging people who are most in need. Check Craigslist/FB marketplace/Uncle henrys for cheap used laptops or maybe even give your library a call. They often have loaner computers for students but if you explain your situation they may be sympathetic enough to let you use it until you can afford your own.