Too late to learn hypnobirthing?

Samantha • Mummy to my beautiful Archie born 13th September 2015 👪💘
I'll be 34 weeks on Friday and I have planned to have a water birth. It was only yesterday when I decided to research hypnobirthing and I think it sounds perfect. I've purchased the book and it comes with MP3 tracks to listen to. Is it too late for me to benefit?