I should have........

"I should have....." - This is one of the worst statements in a person's life. I learnt a very instructive lesson today that never give yourself an opportunity to say - " I should have....." So utilize your present moment as much as possible because you never know what will happen next. I have heard many people feeling sorry that they didn't utilize some moment of their life efficiently.
I really really want to chant and study nicely because I don't want to regret later on for something I didn't do before.
Therefore use your present wisely for a successful future because in the future you cannot get back your past.
Lets do the needful before its too late...!!