This is really good advice:
My guideline is "nothing white -- no wheat, no rice, no potatoes, no pasta, no baked goods..." Once you get those things out of your diet, going keto won't be such an abrupt change.
My husband and I went full on Keto and did it for 2 months. I lost 20 pounds and then I just could not sustain it. It was making me crazy. I went off of it and have gained 10 lbs back already. I wish I had done it the way Iceblossom suggested and in fact, I am going to start doing that Aug 1st.
Not to scare you from Keto if that is what you want to do because it is a good way to lose weight fast, but don't let it become all-consuming like it did to me.
Now, to actually answer your question: There is a really good page on Facebook called Keto Diet for Beginners that has good information and is helpful for newbies without shaming you for asking basic questions.
Keto FB group
Watson