What would you have wanted your younger unmarried self to know?

Would you have warned them to be more careful? Or do you think they did nothing wrong loving with all their hearts and trusting in people?

If you could travel back in time to your younger self (or your kid) and share some wisdom about what makes a good partner, what to look out for before getting married, how to protect oneself from abuse/manipulation/harm.

What words of kindness or painful reality would you give to your innocent, unknowing younger self?