Can share what hobby you have especially if you have a new born ? Feel that I have sacrifice a lot of my time to my new born and I do wish I have some personal time of my own to do meaningful stuffs.

If you like writing, maybe you start writing in a journal? It could be about anything. Some moms write about their feelings on motherhoods, obsevations about their baby, short stories, poems or even random notes. Another idea I like is to write a journal for baby. In the journal, you write as if you are talking to baby -- kindda like short letters to baby, daily. You can present this collection of "letters" to your child when he or she grows up, for his or her 18th birthday, or even as a wedding present. I think this is a super meaningful hobby that will fill up your time whenever you do have time to yourself and at the same time, it will benefit your child when he or she grows up :)