My experience too! My first portfolio I really did not understand or know what I was doing. I used Bittrex as for me this exchange is very easy to use, and to buy/sell. And I can see on my cell how my account is doing. Any ways, my initial portfolio was about $2900. I watched it climb for a couple of days, then decided I needed to watch it more carefully after it hit $5900. In 10,days it went to $19,950 - never quite managed to break through the $20000! Sold it all then watched Bitcoin and the alt-coins crash out.
I put some of those funds back into my bank account, some into USI-Tech and with 5 put together a new package after listening and learning! If Bitcoin takes off again as predicted, then I am well prepared to take some profits and extend the portfolio. Add in what VincentB is proposing here, I hope that will allow me to start t trade and profit more effectively. drjules63