Before everybody recreates those lengthy suggestions they spent hours writing the last time you posted this two months ago, did you try any of the suggestions?
http://www.chess.com/forum/view/general/im-convinced-now---studying-too-many-tactics-makes-me-worse
Also, looking at your ratings graph over the last 90 days, please point out the point where you dropped 150 points since mid-October, the time of your last post. I couldn't find one. It seems like your rating has improved since then.
I've posted about this before, and yes, I'm yelling about it again since it seems to be so true.
Studying a lot of tactics makes me worse! For real - I start looking for sacs here and there, and start losing sight of the safer positional pluses in hopes of some (unsound) sac.
I went through a ratings lull for 2-3 weeks where I lost nearly 150 points - during that time I was studying lots of tactics, from 1001 Reinfeld, lichess, and chesstempo, mainly because I hadn't done them in quite awhile. I did quite a few of them, and probably 90%+ of my chess study time was tactics.
Got depressed about my big ratings slump, and lost motivation to study tactics. Went back to reviewing lost games (which were usually really lost from positional oversights), watching GM Akobian's youtube videos (gawd they're good!) and refreshing my openings a bit.
Have done minimal (essentially none) tactical exercises for the past 2 wks, and I'm playing MUCH better again - more solidly, faster, and with a better feel for the positions.
It just amazes me how much of a drop I get when I study all tactics. Part of it might be my opening selection, which is admittedly less tactical now (London/French/Stonewall), but it's still amazing to me how little pure tactics study is benefiting me at my level.