When I went back to work, I felt just like you did. In fact, I started crying at my first interview with a childminder, thinking "Am I supposed to leave my son with YOU??" She did nothing to make me feel at ease.
A few weeks later I found the right one. She was lovely! and my son loved going to her. When I dropped him off in the morning (he was 7 months old) I knew that I did not have to worry about a thing and could concentrate on my work.
I am now a childminder (have been for a few years) and I know how hard it is for mothers to leave their children.
The right childminder will make it as easy as possible for you and it will just feel right when you meet the right one.
Ask for references. Look at how the children are in her company(usually childminders are female. Look at how the little ones interact with her - do they climb up to be cuddled? do they show her things and interact happily with her? if they cry to they go to her for comfort?
The right childminder will not care a fig if your child is a messy eater. In fact, anyone who expects an 11 month old to eat any way other than messily has unrealistic expectations and does not understand children.
Again the right childminder will share your ideas and maybe come up with some that will make things easier for you too. And yes, they should definitely give your child cuddles when she hurts herself or even just because she cares for your child.
The childminder should also understand and respect that you are a "worrier".
You will find the right person - make sure that all the paperwork is in order like registration certificate, insurance, fist aid, etc. And then make sure that you feel right about her.
good luck!