Re: the whole therapy thing
Yes, many of people do go to therapists for exactly that reason, but that's not what's going on with Tim. The only people he wants to talk to are people actively helping his investigation. Even if a therapist never brought up the possibility that Bruce was really dead, the fact that he's a therapist would hint at it. That's why he throws his R-rangs at Dick for suggesting it. He doesn't want to talk unless it's about where Bruce is other than in his grave.
If Tim got to a place where he did want to talk sure, he might choose a therapist. Or he might just as easily choose one or some of his friends and family.