Paralyzed at 1200.. 15 game losing streak

I study tactics every day. I try to follow opening principles, think before I move. I'm so lost with chess yet again. I always get frustrated and quit. How the hell do people actually apply meaningful improvement to their chess? Everytime I focus on something it causes me to go way backwards - Caro Kann, London, e4, e5, I focus on trying to learn these things and just get crushed every time. What do I do here? 

well on openings you could try a rare but effective opening like the Vienna, and then just focus on taking space in the center and choking your opponents pieces.

Improving Your Chess - Resources for Beginners and Beyond

https://www.chess.com/blog/RussBell/improving-your-chess-resources-for-beginners-and-beyond

Hey, don't know if this will help you but it might have helped me:
What I used to do before:
1. Tons of puzzles (I think my ratio was around 8 puzzles to 1 game actually played online)
2. Binge blitz
3. Barely any analysis of my games
What I do now:
1. Only 1 15|10 game per day when I feel I'm in my best shape (mornings, before work). This avoids tilting when I lose and binging when I win. Playing slower time controls makes binging harder compared to bullet or blitz.
2. The game I play must be analyzed.
3. I only play rapid games, blitz is not important for me atm.

Benefits:
1. Easy to make time to analyse 1 game
2. No binging because of the slower time control
3. No tilt because one game per day
4. Use of remaining time has improved (used to run out of time a lot)
Consider taking a break as well if you don't feel you're enjoying it at the moment, it is a game after all and a challenging one at that.
Good luck!

Hello

Looking at your games, I don't think your problem is tactical eye, and it's definitely not openings. Appears you need a more consistent move selection process. Looking at your rapid games, about half your moves or more are made in less than 15 seconds. Most of your blunders, including tactical ones, positional ones, and straight up hanging pieces, are on these moves. You're games will only be as good as your worst move. Ensure every move, even while in opening territory, or in lines you were already looking at or in positions that feel calm or when a move feel obvious or even imperative, gets the full move selection treatment, including finding at least 3 candidate moves, considering potential responses to each, checking for any hanging pieces and for attacks on your king or queen.

You use more clock than most, but don't be afraid of falling very low on time. As a rule if you're never losing/almost losing by timeout then you could almost definitely win more games by using more clock. If you do ever end up under a minute and don't have an advantage, then it's almost for sure a game you'd have also lost if you had played quicker and less carefully. Hope this helps, good luck!

I just looked briefly at your game with BlazTeR021 and, from just a 1,000 rated player, you didn't just sit back and say "What is he giving me?" You missed a free pawn, a fork with the knight, a free knight, etc and this was just within the first few moves. I think you have "chess blindness" and just need a couple of days off from playing.