I would like to get some opinions on starting over in a location where there’s no family or friends.?

LI'm a single female and my kids are grown with their own lives and families. I was single parent and sacrificed my life for my kids well being. I'm in my early 50's and look great. I have sold my townhome and I want to live somewhere other than Texas for the rest of my life. Is it wrong of me or selfish of me to want a life that I can finally and totally call my own. Or should I stay around until the grandkids are grown in a city I despise because that way all other family members will be happy, everyone except me. When is it ok for a female to enjoy her life, I know males leave not grankids but their own kids at the drop of a hat and its ok and the female goes on to struggles and does what she's suppose to do to make a decent life. Now that the kids are grown is she still supposed to wait and put everyone ahead of herself simply because she's female and that's what most females do? At what point is it ok for a female to live her life, is it after death? Leaving North Dakota for Tex