Dear Andrea .
I think everything is very individual
and there is no universal formula for calculating age ,
for example, my husband is older than me spanning more 20 years (we recently got married)
but we comply with physical attractiveness, weight and good health. We have a common view of life and common interests and most importantly, there is the love between us.
I wish you, Andrea, to meet a woman with which you will not think about formulas,calculations of age and who will also accept you with all your flaws, overweight and your virtues.
When you met Your woman (love) I think that your question (posts) about the age to stop being important and actual to you.
Whish you good luck !