Bismillah walhamdulillah...There are certain thing that we can not know just by reading books...certain things come through our own experience...after we could face the most difficult situation at that time...only then we realized the wisdom behind the problem..Actually how we can forget our past problem?? means that take it as the imtihan for us as a normal human being...i think we should socialize ourselves..know more people ...start from the people around us...getting know each one of them...if we are ready to share with them,,if Allah wills they also will be ready to share with us...one thing that we need to remember,,it stated in the holy Quran do you confess you hold your faith,but Allah has never test you...it is impossible...from the test we know who we are...so,just think about it =)