Well mate i don't know how much of a heavy case you have for your depression. I'll tell you how to deal with procrastination though. It's tough but i realized that i didn't want my life to continue being shitty and amount to nothing. I wanted to do something better with my life and live schedule like so i know exactly what's coming.
Clean your room up, wash your clothes, plan for what you are going to achieve throughout the day.
The first step is always the hardest, so be fueled by your dreams. Do not give in to the terrible thoughts.Cry through it if you have to.
The fact that you ask this question means that you must have a reason to go on and stay on this world.
Use it as fuel all the way forward.
Now after everything is nice and clean turn off anything that's distracting such as your phone or anything else and pull up an artbook or two and work. Really stick to being committed to it for 30 minutes and then chill out for the reminder of the day. Every day you should be increasing the time spent on drawing. Do not grind or grind for a little then go and draw whatever is fun to you.
If you want to draw for more time then do it. It's up to you. I also recommend journaling if you can't afford a therapist. Look into stoicism too.>Been dealing with procrastination, depression, off and on with art for years. I stuck to drawing on a schedule and now i'm making good progress and have a aptitude for art like i never thought i would.
I don't know if it will work for you but doesn't hurt to try.