A.W.
Write down your top 5 most important beliefs/values/truths etc whatever you want to call them. The other person needs to agree with at least most of those or it won't work out. If one of your top 5 for ex is to have a relationship with God and the potential person doesn't = not going to work! If one of your top 5 is to travel as much as possible and the other persons is not = not going to work! Have children? Work ambitiously to have a certain lifestyle? Live a healthy life? and on and on and on..........
Love is not enough - you must be compatible! And "NO", you cannot change the other person!