Welcome to MS.
I am glad you have found this place of healing and support.
In the United States many males do not report sexual abuse or assault for fear of not being believed, fear of being humiliated, etc. But none of us have to fear being executed by the legal system that is supposed to help us find justice.
A dire consequence such as that leaves those who were violated with no where to turn for help. If you were to see a therapist, would you be able to discuss the abuse? Or would that also put your life in jeopardy?
I admire your bravery for coming here and sharing your experiences with us.
Being accepted into the highly competitive and difficult program of engineering, and the fact you speak at least two languages should demonstrate to you that your difficulties with school had nothing to do with intelligence. The difficulties you experienced - avoiding classes becuase being around others was too difficult, etc., are a direct result of the abuse. It is not, in any way, a failure on your part.
The good news is, if you are able to get help for the issues resulting from the abuse, you will be able to pursue your goals of going to the university, or anything else you choose to do in life.
There are several books you might find useful.
Abused Boys: The Neglected Victims of Sexual Abuse by Mic Hunter
Victims No Longer by Mike Lew
I am certain others will share titles they have found useful. You can find these titles, and others here at the bookstore
If it is unsafe for you to have the printed books, you may be able to download them (you may need the Kindle app to read them). The books may also be available on cd/ dvd.
Take your time and look around. You do not want to trigger yourself by reading too many posts at one time.
At your own pace, read the boards and wander into chat. The lounge (chat) is open 24 hours a day though it isn't always populated.
We also have moderated chats called Healing Circles.
They meet on Sunday and Wednesday evenings at 9pm eastern time and one on Tuesday at 19:00 UTC (European and African time zone) which translates to 2 PM Eastern US time zone. The Healing Circle on Tuesdays is scheduled to resume in September.
Again, welcome to MS.