I see you are playing longer games, so that is good. If you are not already doing so, you should be carefully analyzing all of your games right after they finish.
You say you make a lot of blunders. I think it's important to identify what kind of blunders you most often make, so you can work extra hard on that aspect of your game. Do you most often drop pieces? Get them trapped? Leave your king exposed? Miss easy mates? Lost track of which squares your opponent's bishops attack? -- Try to find a pattern for your mistakes, and work from there.
i am a very good taticen unforuntly i have a propblem with making silly blunders. what can i do to improve this part of my chess game.
thank you very much for the help