I'm on the same route clacy is on, only a little more aggressive. My goal is to make 20%+ CAGR, with all the same intent. However, I do believe I can "retire" fairly soon if i can prove that return over a number of years. I guess you could consider that "full time."
Anyway, after studying the hell out of it, i've pretty much concluded 20% or 30% is all thats reasonably possible without suffering extreme drawdowns. As you can imagine, to live off those type of returns, you would need a very significant capital base.
I know some people do more with less, and i think most of those folks mostly have some sort of edge, either based on certain types of liquidity plays (or lack thereof), or other fleeting edges. Simple trading using TA or price action, it seems tough to exceed 30%.