I Am Stressed Out

I am having difficulty falling asleep, I missed a week at the gym and I'm afraid I'm not doing enough to lose weight. I'm afraid of dying in my sleep from the massive weight on my body. A friend of mine talked to a girl I've liked for a long time, but who has stopped talking to me to see how she really feels about me, and that has been working on my mind too. I have an appointment tomorrow with the people who are supposed to be finding me a job. All of this has been working on my mind, and kept me from falling asleep.