burdened

sometimes i feel that i cant make decision and i am not a capable person. and i think too much and i take matters too seriously n i handle things all by myself. n i become depressed.
is this some kind of an illness? a personality disturbance disorder?

when actually i'm really2 glad n relieved if someone advises n reminds me that i can delegate the matters, i dun have to handle the burden all by myself..im not alone..really2 appreciate it..do remind me, cause im used to handle things all by myself.