Female Ejaculation Truth?

Ok I feel weird asking this but I hear so many different things. I want a professional's word. I just really want to know 1. can all females 'squirt' and what does the amount depend on? 2. Can they all have orgasms? 3. Does gspot injections help female orgasm if they struggle? Can you make your nerves more sensitive? Like, what do the porn-stars do?