You start where you've got ideas. Taking g particular note that the forum is strict on its rules and being new gives you an opportunity to get it right without making much mistakes. With that being said and I'm sure others must have advised that you visit the rules and ensure your days on the forum is patterned to abide.
Bitcointalkforum is a unique place and the best place to be yourself and be acknowledged for your uniqueness. Just ensure being yourself doesn't involve any vices. Welcome to the forum!