What should I do now?

A year ago I attempted college and I got sick. I had to quit in the middle of the fall semester. I returned to school this Fall. I have 4 cles and I think I failed them all. I saw my midterm grades and I had 1 B, 1 D, 1 F and one I. This was 3 weeks ago. So I now feel like I'm wasting my time at college if Im only going to keep failing. I like learning but I am so unmotivated to do any work and it's causing me to be depressed and stressed. My parents are struggling to pay for school out of pocket, I promised to do well this semester and if they find this out, I'll be murdered. So now, what do I do?