I would have stopped myself from being inspired by an artist that drew anatomically incorrect characters lol you see, for beginners that's a huge set back xD Since it's important to learn from the basics!
I like what I'm doing and I think I've used my time favorably as I've been practicing writing even though it was fanfiction. I always saw it as practice for something original I felt like writing in a near future hmmm
But yeah, I would have liked being inspired by more artists. I think I took too long to get some stuff right because of that XD now that I look back on the drawings that inspired me I'm like why did I not see this 
Hmm, my first fanfiction was a mess though, I added too many elements XD but well, getting it wrong is always part of getting it right! I would have liked not writing it in english though, I wanted to practice then but the dialogues and narration were so poor it's cringy when I try to reread it ahahahah XD
Still I'm very optimistic about it, if anything, more than restarting this life, I wish I could take my memory and present skill to a new life so I could keep improving loool XD