Hi,
It might sound odd to you, but I would like to say Well Done!
You are reaching out for help here, you have therapy booked, those are huge steps toward your recovery. I know it might not feel like it right now but it is very positive.
I know from personal experience how bad depression can make you feel.
I would just like to suggest you look at your depression from a different point of view. It is a mental illness that anyone can get (even David Beckham, Beyonce, Adele and Dwayne "The Rock" Johnson!!). Would you feel guilty for catching the flu? I don't think you would.
Friends and family are your support network, just like you are theirs. Every now and then, you need to rely on them. One day, it might be the other way round.
Until you can get your therapy, there are a few things you could try. Get some exercise, even if it's just going for a walk. Getting some fresh air will help.
Look up mindfulness, it can help you relax.
Before becoming an hypnotist myself, I used YouTube videos to help me go to sleep. I'd recommend hypnosis videos by "Michael Sealey". They worked a treat on me despite my depression and anxiety at the time.
Or you could try the "Betty Erickson" self-hypnosis method. It is simple and will help you relax.
Again, you are on the road to recovery. You have help, you will get more soon.
With that help, you will get better.