Many of us hit roadblocks internally, maybe this was something we were told about ourselves. This could've been told to us by life, family, past relationships, past failure and even ourselves. God is Greater.
When we hear these negative thoughts, or come to these internal roadblocks, we have a choice to make. Resign and give truth to those thoughts or go against them and test them so we know for a fact. God doen't want us to resign, he wants us to fight for the truth.
When we give into these thoughts and view these roablocks as dead ends and not roadblocks(which can be moved) we give these thoughts truth and that's who we become.