Failing most of my classes

ok so basically what the title says. I'm literally only passing one out of five classes im taking and I don't even know what to do. the semester is a little over the halfway point and I just don't know what to do. it is mainly missing work because I get very depressed and anxious which makes me forget about my work and avoid it and not have the motivation for it, that's blocking my way with my work I get so unmotivated. will just grinding all my assignments and trying to get them done raise my grade and help me not fail? like if from now on I get everything done would that help my grade I just don't know what to do anymore. I need advice because im so tired of failing and being unmotivated about it and I want to succeed