When does one know 100% they are where they are meant to be and that life is as it was deemed from the beginning -
mentally, spiritually, physically, love and relationship wise?

I HATE the not knowing..... as there is to much to know (need to know out there).
- - and every person, group, religion, building, etc has different info to offer on the same subject or question.

*BIG SIGH* *DEEP BREATH* *BIG SIGH* *PONDER*
__________________
LoVe,
R h a p s o d y -

These are very deep questions you're pondering and I don't think there's one answer. Mentally, spiritually, physically, love and relationship wise - I think these parts of our life never stay the same - they're always evolving. I don't think we can ever be 100% sure - all we can do is be true to ourselves and make sure we live a balanced life.

Does a person ever have the right to live their life for them and them alone.

That's another deep question. For me, I'm responsible for 2 girls but this is where I want to be. Since your son's are grown (20 and 25) it wouldn't be selfish to persue your own interests. Would you mind sharing what you have in mind(no pressure of course). Are you questioning what's your role in life in this stage of your life??