Shorting only makes sense if you do leverage, which at the same time leverage never makes sense because you can get on debt if things go against you.
Basically never short. Buy and hold. You require too much luck to win shorting. I dont believe in predicting the market, let alone small market noise.
I have a small 6 btc stash I trade futures with on okcoin @ 20:1 which I use for day trading. I have my long position on Bitfinex. I do agree you can get yourself into deep shit if your on the wrong side, but in this market currently it's to easy to make trades and gain a profit. I take profits out and funnel them back into Bitfinex. If you watch the market closely it's very easy to make gains. I think the main issue with leverage (I used to do this) is holding on to long and not taking profit. Before entering a position you need to establish when your going to get out and when the time comes you need to follow through with your exit. In some cases it's better to hold longer (coinbase pump is a good example). Also never go all into a position, I usually build my positions slowly constantly averaging out.