Maybe you aint suitable for trading in bear market as bearing market is very violent, you not only need a tough mind but also time the market right (when to short and when to cover).
Paper trading first, until you are confident with making profit on bear market, then start with small money until you can control your emotions, not being fooled by the violent market moving.
Trading in bear market is the quickest way to get profit but so do losing the money. Risk/Money management is never being more important than in bear market