trading system - stochastic trendline

In my previous trading session (13th of Apr) I bought 5000 BCC because of the channel that this security described during the last 8-9 months and the struggle seen in the latest weeks to break the upper line of the channel. Based on the saying "If a trendline is hit several days/weeks in a row , finally it will be broken", and looking at stochastic indicator and the trend it described I decided to BUY this stock
The strategy here is :
- if the upper trend line of the channel is broken then at least 10% profit expected
- if the price goes along with the upper channel trend line : HOLD
- else SELL