Never hurts to wish and work towards fulfilling it. I think when any one starts a new chapter in ones life they would have the same feelings. A big step and lots of interesting things to come.
Should one be happy with what they have got? That depends on what they have got and what they want in the future.
As for past lives, I guess they help in the present learning curve. Learn from that life and improve on the present is a good way to view it, I guess.


