Hey, this statement is why people are giving you flak.
When you hear terms like 'man up' and 'grow a pair', what is really trying to be communicated is:
Take a look around. See all of the overweight, lazy, apathetic people that literally lower the overall potential of the human race? You won't find them here.
Man, this here is an all out war. The transition from low energy living to energetic supremecy takes special motivation and a fuckton of gumption to accomplish. You'll find that the standard laws of inertia do apply however.
You don't need money, you don't need a trainer, you don't need the latest and greatest gym, and what you can't do is approach this with the same casual swagger you might take when you are deciding which movie to go watch this Friday.
What you need is a mindset that is bulletproof. Uncompromising, unforgiving, brute force goal crushing willpower.
Educate, execute. Anything that gets between you and those goals has to go, even if that might be your lazy apathetic side that really seems to have its hooks in.
From time to time, I have definately had to 'man up, grow a set', and tell that little whiney, pathetic voice that rears up sometimes to sit and spin.
Goddamn right... sit and spin.