No, you aren't. Study tactics heavily. Start by learning each tactical motiff such as pin, fork, discovery, skewer, etc. For this, I'd recommend a book by Susan Polgar, Chess Tactics for Champions. Here's a link- http://www.amazon.com/Chess-Tactics-Champions-step-step/dp/081293671X Then study more complicated tactical problems and combinations. The Tactics Trainer here is good for the second part, for example. The point? Tactics, Tactics, Tactics... Take it from me, I neglected tactics early on and I'm basically having to "start over" with my learning process. Good luck.
am I just the worst chess player ever?

I bet you arent. If youre being literal, then defenitely not. If you cant win games, try to play someone less experienced. then work your way to the harder players. thats what i do at least

What I mean is don't think your the worst because it makes you lose confincidence which gives a -800 rating

Someone can play chess with 1 day practice but someone cannot play chess with 1 year practice. I'm in someone group who cannot play in 1 year practice. You should stop playing chess if you lose every game after a lot of practice.

I doubt it. I've been feeling that way too a little.. I fare ok against the computer if its under 1100 , but I've lost every game against real humans on here except two. But as I recently read, if you want to get good at chess you will lose thousands of times. Just gotta keep at it and work to improve. Lets get a little less terrible together! Cheers
You're over 1200. I've been at it for years and I can't break 600. Your surmise is super-insulting by way of comparison, though I'm sure you didn't mean it that way.
The experience of trying to play this game at even a 10th percentile level has convinced me that my mind/brain is deeply and irreparably damaged. 95%+ of people just learning the game shortly do way better than me. Nothing has helped. It's ultra-depressing.
I can't remember positions. I can't see basic tactics during a game, even though I'm 1900+ in tactics / puzzles. I can't remember opening lines, despite dozens of hours studying them. I can't remember what I was trying to do the minute before. I can't make plans. I can't figure out my opponent's plans. I can't even see if pieces are on the same diagonal or one piece is directly threatened by another sometimes (that comes and goes, I'll have weeks of being able to do it then I can't again), they appear / disappear and seem to jump around because my vision is also broken.... all of this have made my nerves and emotions complete garbage playing, so that just compounds it and makes everything more miserable... I want to quit so bad but I just go into a rage / depression if I try to give it up. Or if I don't.
My point is, you don't have it that bad. Some people' heads *just don't work at all*. I'd literally give an organ to be able to play at your level. So stop thinking you're "the worst" when there are plenty of people who have been trying hard for a long while and can't do half of what you can.
I've been playing a guy for 3 years that never improves. According to him he's been playing since he was a young child. I can't say it's paid off for him.
My initial strategy with chess.com was to play against people who were much better, but I find I learn more when I play against those who are similar in rating to me.
Online chess also gives you the luxury of taking your time and analyzing each move, something I strongly encourage.
Good luck with the game.