What happen today .. all i see it red color. dropping ..

And moving forward 5 days, the price seems to recover and almost all of the coins are in the green zone. Lol. I hope you do learn your lesson here dude, the market works that way, its a continue up and downtrend. But it doesn't mean you cannot take advantage of both trends.
- If the market is down then buy more coins.
- If the market is up then just hold your coins.
Simply strategy that you can really do in both situations and will result in gains instead of losses in your end.