when you try and dont improve

im speaking for those like me who we tried to improve our game and we dont have results.Ive been playing for like four months already and im a mediocre player but when i play  against better ratings that mine i do good games.

my points is what else do we have to try ? i have problems trying to see tactis and strategy because its very hard to me to follow it, you know they make a move and ruin your plan.

people tried to advise me and i listen and y apply  the method but  it seems like i cant get over the numbers of my rating, i  do excellent games and i loose stupid incredible games and that ruins my  focus on the game.

you guys outthere maybe a lot of players go through this  and after i will became i little better or i really suck?

im listening  !!! thank you guys