I think that ETC is still not powerful enough for new all time highs such as 60 or 70.
If the price goes up and passes the 50$ range, wait and sell at 60-70 range.
However, if we touch 50$ and you see the price correction happening, then we probably have a double top and you should sell and wait patiently until the price retests the previous support level or even goes lower than 28$.
* Watch for high RSI (anything above 90 RSI is a good sell opportunity) and MACD values.
I know, but till than... Use any chance you get to reload and continue. It's foolish not to use some trading situations. Take profit, reload and wait for a new chance.