Welcome!
Regardless what the lovely (and talented...but that is another story) Tanya said above, my bark is worse than my bite. But my breath will knock you down! Watch out for Ketosis breath! Woof!
You are going to find some of the nicest and most sincere people you could hope for on this board and in these forums. (And then there is me to keep Tanya humble and DarB-doll healthy.)
I do wish you every success in your search for personal health. Listen to the folx who have been successful. Listen also to those who have failed. That is almost as important. Knowledge puts you in control of the decisions for your life!

Read the book, eat all the food on your chosen plan, drink the water, take your supplements, and read the journals of the people who have taken the journey ahead of you.