Hola! High school drop-out, 3.5 years at exceptionally shitty community college, reasonably young current Oxford graduate student here. It is possible! I used to feel really embarrassed and miserable about the community college thing, but really, people don't look down on you because of it, and they'll respect your dedication and hard work. Dreams aren't always easy, and often require huge amounts of struggle, but flexibility in how you get there and your timeline is key
Please though, keep your appointment for next week, and like another poster said, call 1-800-273-TALK if you need someone over the weekend.