I guess reaching the end of my 40's, I'm feeling a bit like I missed out, made wrong choices that I am stuck with.
MLC? What are you referring to when speaking of wrong choices?
What are your children's ages? Are any of them adopted?
Sorry I have not read your previous threads. Maybe you could practice more compassion towards your wife? 6 children require a lot of time, work and patience. They need their ENs met too (by their parents).
What can you do to become more attractive to your wife? I'm pretty sure being a kid #7 is not that.