Do you lose yourself in marriage?

My biggest fear is losing myself in marriage. Me marrying someone and not really becoming everything that God desired for my life. Or marrying somone who walks in the same patterns of what I have seen and am twistedly comfortable with. It's been me and Jesus for so long that sometimes it is hard to imagine sharing myself with someone else other than Him alone. I fear no choices, no life anymore. I have been thinking more so about marriage since my brother just recently was married a couple of weeks ago. All the thoughts of, "What if I marry the wrong person?" "What if I marry someone and they end up being a completely different person after I marry them and then I'm stuck?" "What if I marry into abuse?" "Would I be safe to express myself and be able to choose as an individual and voice my opinion and it actually matter?" "What about all the passions of my heart? Will they have to die to the one I am marrying?" All of these are fear-based thoughts, not faith-based. There will always be risk in any relationship. That is life and that is part of loving. I would pray that the Holy Spirit would knock me up side the head if I was making a life-altering, non-reversible bad choice, but unfortunately He doesn't work like that. I'm glad that He doesn't, but sometimes with things like this, I wish He would give us a whack if we were making a regretful decision. All I know is to stay as close to Jesus as I know how and listen to the Holy Spirit and not be resistant to Him. Marriage seems like a scary thing. It's like looking into a dark body of water and not being able to see what's on the bottom. Sometimes I think that I don't trust myself enough to make the right decision. This is freaking the rest of your life spent with someone as one flesh! For a long, long time! 60/70 years! This is definitely a big deal. I want to be as close to Jesus as I can. Nothing is 100% but Him, but we were made for relationship, made for intimacy. That is why Eve was created out of Adam's rib. Fellowship, companionship, intimacy. So... "Do you lose yourself in marriage?" Overall, I believe that if you are as close to Jesus as you know how to be that He will bring exactly what you need and instead of losing yourself, you will die to the flesh, but yet flourish as one flesh and life will become so much more as one than as two individuals. You will bring each other out in one another. No reserves. No regrets. You will find much more than what you thought life could be as a single person. But Jesus always is the center through it all. When you find Him, you cannot lose yourself, because it is found in HIM.