Yeah I thought it was pretty cool when I first learned about it, too. I took a Myers-Briggs test in college as part of a career search and INFP was the result. I wish I had kept the results, but I didn’t. I remember that I was heavy on the “I” but I don’t remember where on the spectrum I fell on the other 3 categories except that I was borderline on 2 of the 3 and far to the right on the remaining one. I do remember the conductor of the test saying that "IN"s are relatively rare. I am so unique

jk
Hey, INFP, Do you think that the NF idealism may be behind your desire to wait until “everything is perfect”?. I know, because I have the same thoughts about what a “Holy marriage” I should/want to have and that I should be prepared by then. MBTI helps to make us see that some of our perceptions are not objective but “typical” if you catch my drift
But what we often forget is that the Saints became Saints through an entire lifetime. If you wait until you’re completely perfect, you’ll have to “settle” for your honeymoon with your spouse in heaven

If marriage is God’s choice for you, then its a means to help you
become holy through sacrificial love, struggles, not having your way all the time etc etc. Still though, it’s good to prepare yourself for it while you’re waiting for a woman, I’ve seen some Catholic therapists on the net say that a lot of issues are taken to marriage that can be sorted while you’re single so you try to make sure you carry the least baggage that you can into your marriage. But “not being Holy” is not one of those- That is sorted in the school of life under the Direction of God, the Holy Spirit.
I think if you’re genuinely struggling to be good, learning what the church teaches and what Christ wants and trying to do it, praying and having an interior life, and doing your best in your material life- tying to get a job, do it well, taking care of your family and responsibilities etc- Then don’t pass up a good prospect just because you’re not a Saint yet. You will be one day (Most Holy Mother, grant it to us by your prayers)- But probably “through” the struggles of marriage, not before.