dont know much but might be because you havent played slow games much. You have a habbit of playing fast that somewhat leads to blunder as your blitz rating is around 1000 but in rapid you are facing some 1300 rated players who take time and move accordingly so let it be dont worry worry about just try to slow down your speed of playing moves and think about moves first and also keep on practising tactics cz you have to improve them too in order to perform better... Good luck

my highest rating was once 1100+ in blitz, but my blunders put me so down here. thanx

I can teach you lessons if you want

Why can't I avoid blunders?

A side effect of being human

You may not see them blunder,but they may have missed the *best* move.Try & look at the entire boa

rd before moving,not just where the action is. ( Wish I would do this & avoid some of my blunders)  Good luck!

Youre human.

Youre low rated.

Your tactics rating is under 1000

Take your pick, or decide on something else.

Could be just a nervous tension thang-

Years ago  OTB and we  used a clock-

I used to Forget about my plan for a short time and think of what  the opponent is thinking to do to my position-

then go back to my plan and check all the moves again, then do it again going as deep as I could,  and again until I figured got it "cased" as best I could, then make a decision and go for it  but

after the one  last check to make sure you've nothing left hanging and your not moving into harms way  .Sometimes its the most  obvious are not. If things got too intense I would take a quick break.

you make mistakes at the endgame?

think that your opponent has been replaced by a GM, and show em what you got! BREAK AND CRUSH THIS GM INTO Powder in the endgame!!!!!!!!

Thats what called fierce!

Forget about worrying not to lose but think about winning this game.

 Of course, there is no "for sure" way to prevent blunders every time; however, taking a few extra seconds to scan for a few things makes a lot of difference. These things would be primarily (but perhaps not limited to: ... ) checking for hanging pieces (you or opponent),  making sure all of your pieces are adequately defended (even if one is not, it is okay as long as you notice it), and obviously checking for the opponents' best responses if you do choose x move.

Since this takes a little time to do, most people will recommend that you play Chess with slower time controls (but even blitz players often utilize my "quick check" idea - just to be sure they do not miss anything. 

Simply having fun goes a long way to though. If anyone plays too much Chess at once though (or any mental activity for too long), they may experience "burnout." To summarize "burnout", human brains perform mental activity (like Chess) optimally for only about 20 minute bursts. This does not mean that at minute 21 you immediately crash; it just means that human brains sometimes need to take a refresher. Of course, pattern recognition/Chess practice may extend how well you perform (not optimally - but decent) after 20 minutes. If you are experiencing good Chess play, but then streaks of good followed by bad (like simple blunders you clearly should have seen) - then you may be experiencing this Chess "burnout". Luckily, a break of even ten minutes or so can help; it does not need to be long, but different people perform better at different break lengths. Basically, person A may only need ten minutes to recharge, but person B may need the whole day as a break (it just varies/trial and error tells what you are). 

To paraphrase this response:

-Check a quick scan for how defended all pieces on the board are (you and opponent)

-Avoid Chess "burnout" via breaks to recharge mentally

-Of course, have fun at Chess; you will perform better if you are having fun  

If you do employ these simple elements, you will likely blunder less often.

all of them?