It can be a very lonely upbringing being in the truth if you arent accepted by the popular witness young ones. Then at school you're not allowed to associate with 'worldly' ones.
*shivers* That brings back bad memories of my youth.
Hi & Welcome to forum! I think you'll find a lot of good resources and advice here. One of the most important things you can do at this point is change your doubts into certainties or you'll always feel misplaced guilt and will never be able to recover. Arm yourself with information, be it secular or reading the bible w/o the WT lens. Then you will find certainty in the decision you've made.
All the best ~