When a boy is sexually abused he is harmed in two ways. First, of course, is the physical harm that is done to him. That's a terrible thing to endure, but it does have a time when it began and a time when it ended.
Far worse is the emotional hurt; that goes on and on and can harm the guy for years, even decades. It doesn't "go away". A guy can stuff it back and try to forget about it, but the effects of abuse - all the bad feelings and false ideas he has picked up - just slide under the surface and continue to harm him even when he doesn't realize that's what's happening.
There can't be any hard-and-fast rule book or timetable for healing, Jesse, for the simple reason that we are all different guys, have different backgrounds, beliefs and ideas, were hurt in different ways, and have different needs. There are indeed truths and realities about how all this works, but we all have to look at those aids, see how they can help us in our own case, and then get started on our own.
The biggest reason why there can't be any timetable that Larry (for example) can hand over to Jesse is that what Larry has are the strategies and ideas that have worked for him. What Jesse needs will in some ways be very different, and Jesse's timetable will depend a lot on how he needs to approach his problems and what he feels safe doing. That's very difficult to predict, especially at the beginning.
Nobody living can ever stop me
As I go walking my freedom highway.
Nobody living can make me turn back:
This land was made for you and me. (Woody Guthrie)