16K shares of what? If we're talking about GOOG, you're trading way too much capital for a newbie.
Scale back and trade your plan for a few mos till your automatic with your setups.
Then slowly scale up. It's amazing how someone making money trading small amounts will suddenly lose when...
Most people trade for the excitement whether they admit it or not. Good traders always say their trading has become boring. Like a job, which is what it is.
Get yourself a job first to pay the bills. Otherwise you'll have too much pressure on yourself to produce.
Simplify your trading strategy. Simple truly is better.
Know how much money you need to trade your strategy and don't commend trading until you have enough capital. Otherwise you...