Same here. Reddit and Youtube for a shocking amount of time per day. I had to quit Reddit like I quit nicotine, it was genuinely difficult.
The good news is that it reduced my Youtube time as well because I didn't have anything to pair it with. I realized I would watch Youtube and if I was bored or uninterested I may pull out my phone and hop on Reddit. Get bored of Reddit? Find a video to throw on. It was good to put a wrench in this self-reinforcing feedback loop.