The fact that you've been here this long, and are short right now, means you probably never knew what you were doing and actually made very little profits or lost everything. OR, you just are saying you are short to get others to short, so you can pick up cheap coins, and are smarter than we think you actually are.
Being short 80% from all time highs is the riskier trade. That's why not very many people are doing it now. There's an off-chance that we'll see $200 again, but taking risks like that is how you blow up your trading account.