Don't be embarrassed about it, you've admitted to needing help and it's out there to get it.
Everyone is hiding something,it's not on the same level, but I am scared of the dentist,I have to get diazepam before I'll even go through the door,avoided it at all costs,but now I'm paying for it,as years of neglect have driven me problems.
Youll find people are a lot more understanding if you give them a chance,just remember,they've seen it all before and are professional. They're not going to judge you and let you think any less of yourself.
Life is full of challenges,it's how we deal with them is what makes us.