Question

Hello Rabbi,
What advice does the rabbi give to someone who wants to find a relationship and begin dating?
How do you go about it? How do you know when the time has come? What takes place in the marital sphere before marriage?
https://mikyab.net/%D7%A9%D7%95%D7%AA/%d7%aa%d7%a9%d7%95%d7%a7%d7%94-%d7%91%d7%93%d7%99%d7%99%d7%98%d7%99%d7%9D
I saw here that the rabbi wrote that the relationship develops after the wedding, and before that one only checks whether there is compatibility or not. What does that mean? Do feelings come before or after? What exactly should be checked in order to determine compatibility? What do you do with doubts? How much should you share thoughts, and when does that create too much closeness?
Thank you very much!