I went through multiple names before I chose mine. I started with a unisex name when I was an insecure baby trans, but the name didn't really fit me or my personality. Went through a couple names that were feminine and less commonly used for like a month until I finally settled on my name after looking at a list of top baby names for my birth year and picked the one that stuck out most. I thought I picked it from just vibes, but it came to me some time after that there were similarities to my deadname; same number of syllables, same ending sound, a near-rhyme middle sound. I gave myself a new last name and together with my first I went from x letters in first (nick)name, y letters in last name to y letters in first name, x letters in last name. My brain was cooking without my own awareness. It was def from the experimentation process and giving myself the time to churn through the possibilities.