Please help???

I’m not passing chemistry and it’s the only class I need otherwise I can’t get into my program that I have been working so hard for. I am at a 68 percent which is a D grade and I need a C, 70 percent. I’m a little over half way through and I am so overwhelmed with life. Monday night is the last day to get a w and retake. Which means another extra half year in school. I have been so beyond depressed more than I’ve ever been and had to text the crisis line a couple times. I started a new job the time the class started am moving and staging the house about to be sold, taking three classes and this is the hardest one I’ve ever taken in my life. Before the last test I had tutoring 3 times and spent 7 hours straight in the tutoring center. My mental health is so bad.