It is the first step that is troublesome proverb
Getting started is typically the most difficult part of any task.
Just hang in there, man. It is the first step that is troublesome.
If you can overcome the difficulties at first, everything will be fine eventually. It is the first step that is troublesome.
If you have something on your person/body, it means that you are carrying it with you.
Customs officers found a gun concealed about your person.