that's a very good question, I read on fb.. that the only regrets that hurt are the things left undone..
I haven't been single for very long time however I think its all the time we spent fretting over guys, getting married, petty issues which eventually settle.
enjoy the time you have be carefree! be yourself..:D
My biggest regret when I married was not being able to appreciate how free I truly was of care and concerns.
Take advantage of living with parents woman...they take care of you like a child.
Right now i'm living away from family for my job's sake but i hate how in the west the whole living with the parents is seen for a single person. Other than that, I love the single life, I'll take my time and meet my life partner at whatever point Allah has planned it for me.