I score as INTP, INTJ, ISTJ, ESTJ, ENTJ. But I'm clearly an INFP. Only on the very long and detailed tests do I barely score INFP (borderline on all preferences though, hence the non caps in my type listed). I think it's just kinda silly, it doesn't cause type confusion for me at all. I've been getting more T and J tendencies lately, I've been organizing my life, making plans during the day (for no apparent reason, planning for random things to happen), and I'm also very logical, while having Fi. Logic is my highest value. I approach life going by my head, and not by emotion. Impersonal affairs are handled with logic, while personal affairs should be handled with emotion for me. I'm not going to do something "because I feel like it" to make the best choice in life, that comes from logic for me. I mean... Sure I'll do other things "because I feel like it", like how I just got some candy because I haven't had any in a few days.
But yeah. I'm very varied, I'm like you, INFP doesn't quite fit me totally, but it works.