Aslam o Alaikum,
Yesterday i was talking to a man waiting for some documents to be duplicated and while we were waiting obviously we started a conversation. as i was the senior of the two, he ask me about my experiences in life which would help him in his career. i told him that most important thing in life is to decide things at the best time, which is very important in any one's life.
For example if someone decided while he was getting educated that what he wanted to be at the time when he was getting the education so he could learn that, but after his education he cannot go back in time to decide again that what he wanted to study about. the time is very important. You have to make the right decision at the right time or else time will make that decision for you which you may not like.
Always look ahead of yourself not at the back. Time has given us only one direction which is to move forward. Even if you make mistake, you have to move ahead with or without that mistake. Decide the matter which is in front of you at that time when it is there and do not regret. Do not make your decisions on assumptions or dreams of far future. be realistic, be mature, be awake and be responsible. The rest is not in your hands.
Adios