Can someone give me advice on if my at home workout will actually work?

So i have a plethora of mental things and can’t really get myself to do much but im trynna overcome them and workout a bit because of been really fat my whole life. Im 320 last time i checked and im 6,5. I try doing those bed workouts but sometimes i get up and do squats but i can’t really do pushups. My workout: i do leg lifts on my side till failure twice and in between I’ll lift a ten pound weight till failure, i do that on both sides. I’ll do crunches till failure about 2-3 times. I lift my legs toward my stomach and do that till failure on both legs twice. I also sit at the edge of my bed and do some sorta crunch thing but i don’t think that does anything honestly