You know Neon, it was really surprising to see that your real life experiences mirrored mine exactly 98%. I've been suffering depression for 35 years (I didn't finally get diagnosed until about a five years ago and finally on medication.)
Like you, I too was creative and artistic, but the years were not kind to me. I withdrew, pushed away. My talent suffered. I stopped. Never wanting to pick up a pencil to draw again. It wasn't until I started taking medication that I took pencil to hand again. I felt a resurgence of my talent returning, but my dark side unfortunately was stronger and ever more hateful and made me realize my talent, which I thought I was good at, made me cynical to everything I created. I can draw/write something and a day later, look back at it and just want to throw it away in disgust. I'm still working at it.
It's hard. Some days are harder than others. And sometimes you just want to quit. Don't. I really want to say it gets better. And in at small point in time, it will. It will be fleeting, but don't despair. Because before you know it, you start to experience a lot more small points. And they will all add up. I wish you the very best. Take care of you and yourself.