How do you guys manage intense caffeine addiction?

I consume probably an average of about 700mg a day now, and that's with intentionally not having caffeine at points of the day where I want it. If I didn't restrain, I would literally just be throwing back coffee and monster all day. It gets to 8pm and I still convince myself having more caffeine is fine, even though it screws up my sleep and I feel bad the next day. I feel like I need it feel myself, to focus, have the want to do anything. But it has really messed up my sleep and I feel like shit because of that, and get into bad ruts. And of course mentioning it to anyone it just sounds like a funny thing.