Here is a short piece from one of my books called 365 Self-Displines.
My goal to build a successful company was of immense importance to me, but the path I chose was making me so miserable that I hated waking up every morning. I could have pressed on, tapping into the deepest reservoirs of my willpower, but ultimately life was telling me that this path wasn't for me.
So what's the meaning of "press on" in this context? I looked up dictionary, which says it means to continue with a task. Or is it like press a button on the reservoirs? I am not sure about it. I am torn between the two meanings.