May I suggest you only read the first part of Abused Boys? The second half of the book are personal stories from survivors. The stories are raw in their emotion and language. If reading some of the posts here on MS triggered you, then you may want to read the second half of that book a little at a time.
Talking about abuse issues is not easy, even when you are among those who understand. Pace yourself and take things slowly so you do not inadvertantly trigger yourself. Discomfort is to be expected, but you do not want to unduly upset yourself.
Also pace yourself with your books. It can be exciting to have books about these issues, but you can trigger yourself by reading too much at one time. Give yourself time to absorb and sort through what you read. If you find yourself getting triggered and exercising or engaging in other activities does not help, wander into chat for some real-time support.
Acceptance on someone else's terms is worse than rejection.