Buy as much UVXY/TVIX/VXX as you can afford to 'lose'. Then sit back and watch yourself 'lose' all of it. It will be a much better and memorable lesson than all the blah-blah I can say to you while wagging my fingers. Then you'll know what to do from then on.
I have been buying the dips and selling....then going short. Small gains because I am using to hedge my long stocks and do not care about getting rich from this. Only buying 1600 shares and shorting the same. A profit is a profit. I do not hold for more than 2 days long. Looking foward to shorting long term after market correction if it ever comes.