I'm a irresponsible person
Why do you feel like you are an irresponsible person?
I just can't concentrate on myself, I let everything else take precedence.
That's good you're acknowledging that you're not as good as you could be. But now that you do know, you for sure can improve yourself so you don't have to keep falling back like this and failing.
I feel good. That's the point. I don't care if I fuck up, since I'm a fuck up. :D
I'm glad you feel good, but you can't use this as an excuse to refuse to change your behavior. Understanding your faults is so important, but settling for them isn't as acceptable.