Getting Started Online

[Andy_Aces]

Hello, this is my first post on twoplustwo.com but I'm hoping it's not my last.

Any way, I've been playing online poker now for about 1 year. Just recently I put my first real money onto my PS account. I had just finished reading Harrington on Hold'em 1-3, and started reading Hold'em (For Advanced Players). I felt I had a good grasp of how to play the game. Well I started off well, got up about $200 in 2 weeks. Then it all went down hill. I'd call an all in preflop with pocket Q's and my opponent would make trip 4's. I would flop trip 7's and my opponent would have trip A's. It wasn't as if I was donking away my chips *although I will admit a good $25 was spent through on tilt venting after the 7's lost to the A's*. So here I am 3 weeks after I put on $100 dollars and now I have nothing on my account. What am I doing wrong? Was I at to high of stakes; I started at $0.10/$0.25. It seemed to me every time I got in my money with the best hand I would be drawn out on the turn or river. Should I be playing on a different site? Or should I start at lower stakes? Maybe put on more money and start at higher stakes?
Any advice you could give me would be very much appreciated.
I know I have a long first post, but thanks for reading it and hopefully posting advice.

-Andy_Aces