It is classic. Not only about this, but also about your capital. Traders or investors will be killed if they don't have any capital left in hands.

• Protect your capital must be your priority. You can close your position with a draw and a small deduction from trading fee. Sometimes, it is your success, not failure.
• If you win big, you will have two components in your account balance: Initial capital + Big profit. Let's take do the followings
  
  • Take your initial capital out of your account
  • Protect it carefully and don't use it if you don't lose all the big profit in your account.
  • If you lose all your Big Profit, don't use your initial capital to trade or invest immediately. Spend few days or even weeks to think of your mistakes, learn from losses to improve yourself
• In crypto market, it is not hard to get big profit, the difficult part is how to keep your profit, then your capital