unsuccessful

i didnt read so many books and i didnt memorize openings....especially i focused on strategy and tactics....in teenage i used to play chess with my friends and relatives but they werent profesional games...i used to play just enjoying...i continued to play like that about 10 years...then i realized that indeed the chess game is a profesional one...then i started learn how it is played as professional...then i followed the world chess champions like kasparov, karpov, anand and of course carlsen....when i watched they i noticed that it wasnt chess game that i played....and i got some books on openings , tactics, strategies, end games.....etc i can say that i have improved my chess ability but absolutly not enough...my point is 1570 in standart.....but i can not improve enough anyway..then i think that i am not clever...i started to underestimate myself...after that my success is decreased...it shows me the chess is not about just brain...it is also about psychology....both brain and well psychology have to be together otherwise the success will not come.....

can someone suggest about psychology on chess?

There is psychology in chess? Not even worth thinking about. Don't play bad moves and you win. Simple. No psychology.