Is it okay?

Though I know that it's the time I tell my decision to my co-general manager,I'm hestating ,why?Maybe I feel it is a bit wrong,maybe I  ...but I must do it,more early more good.

Undoubtably,I'll leave here.it's my terminal idea.I can't stay here for more long,or else I'll work in this company in the later days. 

The new project is beginning next week.It's a pity that I have to leave.Here, sarary and lodgings is ok,also the workmates.