OLD HABITS DIE HARD

I like the fact that I can manage my life and having important responsibilities, being busy with my own things and do these things in my own way. However, sometimes I feel crazed thinking that I'm at maximum capacity and feel tired especially if these responsibilities includes another person's burden. 

Thinking I'm good at something and then taking on the burden of others becomes more silly than helpful. I guess I encounter this problem because I want to take a role but I try to do many things myself, instead of assigning tasks. As I clearly see it's definitely my fault and something I need to change. Still I can't help but ask: isn't there any blame on those who abuse the good will?