Thats Real.. I haven't started trading yet. However i've put in my letter of resignation at my job to do this during the day, but more importantly follow my dreams as well. I'm very fascinated with this stuff and its in workings. The one suggestion i have for you is to leave the emotions out of it. Something i plan to do.. Good Luck!

When you get into a stock think about it intently. Be 100% confident going into that trade. And if you aren't that confident about it then skip it completely. And if you miss it oh well, it'll save you from so many impulsive trades. But once you're 100% confident on a play it'll go the way you want and you'll be able to get out when you need to.

Im on TD Ameritrade as well. You can short stocks. I was wondering about that as well when i first opened my account. They have 2 other platforms as well. Trade Architect & Think Or Swim, they allow you to sell short

If you have 10k Interactive Brokers has cheapest commissions and best fills, Etrade Pro for its level 2s and Charts, and Think or swim is great for planning trades and charting and using technical indicators. Sterling Trader Pro is nice if you want a direct access broker