In the big box I started buying BTC $1000 at a time when I could afford it. In total I invested $16K and withdrew from it when I needed the money in total $30K and still had a little over half a Bitcoin left over. In the little box I started trading altcoins with that half a bitcoin and double it in a little over a month. Then I learned a valuable lesson on leverage at the Saturday night massacre. If you're not using leverage you shouldn't worry.