Well of course that's a must. You're not trading when you're not doing something, dude.
I don't think that profit goals means instant cash out for you. I mean for somebody that saves for something could be applicable for this, but I think you might wanna get a bit more than that, because you'll surely incur fees and seeing your balance a solid zero is like causing an emotional drain. Leaving at least few papers would be nice because it could also be gonna pose as your motivation that you already had started something even physically you didn't do anything.