we all have our limits in every aspect.if u play more than six years dont expect to impruve further no mater how hard you try.sad but true.

thank you guys for the words, when  i talked about my ratings its not like im going crazy for it, but i think the rating helps a lot to see our improvement or not? thats way i made emphasis on it, but sure i have a  lot of fun playing and i enjoyed a lot , thank you guys.

LUCHO12

yes you must expect what your opponent may due. this is a great idea lucho, i have to work on it myself.

lucho my friend lets play another game. ill set it up.

I would also say that perhaps(I have the same problem) you are not considering the opponent's plans enough.  Play both sides of the board with equal energy effort.  If they make a move that ruins your plan, as you say, then the problem is your plan probably wasn't the best. 

I think the biggest thing is taking your games seriously.  Don't just play games, take a long look at your games afterwards and see where you can improve.  I spend at least as much time in post-mortem as I did in the game itself, and it makes a big difference.  I also think focusing on results is a fundamental mistake.  Focusing on the process, i.e. playing the best chess you can win, lose, or draw, is the only way to maximize your ability. 

I think mauerblume's got it exactly right.  Your only problem is that you're paying too much attention to your rating.  Play for the sake of learning, having fun, making friends, and being creative, hopefully with a slice of brilliance here and there.  Don't push yourself!  It'll happen gradually with continued practice.

Be patient with youself!