Life is full of Decision

"Life is full of Decision" , I think, I happen to read some where. No no I saw written in someone's Tee shirt. This phrase of few words is not just another phrase of words. It have a deep meaning. I believe it applies to all, whether big or small, successful or failure. The Decision you made on certain issue or say turning points will paved your future or destiny. I always wonder, how happy are people, those who are able to make right decision in the life. Poor me, I am always spectical about my decisions. Was is right or wrong and I also worried about people that might be effect by my decisions....what is the remedies of my problem?