Fertility Awareness Method - Warning long post!

Jess
Hey all! 
So, I've been on the pill for several years now and am sick and tired of not feeling myself and being on an emotional anxiety drive roller coaster. I stumbled upon FAM and picked up "Taking Charge of Your Fertility" to start learning more about it. I've also looked in the Lady Comp which btw - is way too expensive! But anyway, I want to get off the pill and start charting but, I'm just petrified of getting pregnant and not really knowing or understanding my fertile days - even after reading the book.
What are your experiences with FAM if you have been practicing it? How do you deal with uncertainty if any. 
I know that it'll take a few months for me to have a regular cycle so, I plan on using condoms until then but, I would like to be able to share an intimate moment with my partner without and condom and feel confident in not getting pregnant if that makes sense. - sorry if this post has been all over the place I feel like that is how my mind has been lately haha!
Thank you all so much!