Book: Secret Genealogy- A How-to for Tracing Ancient Jewish Ancestry

I am reading this book on Kindle - While I do not show any Jewish DNA, I keep finding surnames that are questionable. I've heard stories from my mom's side -

The ones that have me wondering:

Edelmann
Hoffmann
Gross
Scherer
Morris
Harris (Harrison)
Rees

That is just on the Hasenstab side. (My Mom's father's side)

I also joined Jewish Genealogy Portal Group on Facebook

My Mom's Paternal Side of the Family

It gets very confusing. I needed to write this all down. It's maddening to me when I hit those proverbial walls. I guess I should be happy that I have gotten this far. Yet I am not connecting with any of these families on Ancestry.

I briefly made contact with a couple of Hasenstab's but they never get back to me. Why the heck are they even there? Don't they want to connect with long lost family members?

I feel REJECTED at times. Does anyone else ever feel that way? Or am I just crazy?