I'm with you, in fact I stopped reading altogether because I got so disgusted by the unfinished last few series I picked up, all those you named and some more, series that got a new one so much later that honestly I couldn't remember any of it, and so on. I even had to put Sanderson's aside, even though he's a quick writer and has yet - to my knowledge - to drop the ball. I wasn't enjoying it anymore.

I'm looking to delve into new genres to rekindle my love for reading, but for now, I'm just dulling my brain with simple youtube videos on gaming speedruns at night. Not even joking.