GBPUSD Short Opportunity

We have range market conditions, it means our trading must be based on rules for such markets. We have to sell from resistance levels and buy from support levels. But this time price could not reach the resistance level 1.27000. Price reversed and made a new high lower then previous. Will it be a signal of possible down movement? Why not! Any way short trades are more logical. We can sell below 1.23700 with stop above the downtrend line. Profit targets are the uptrend line, 1.21500 and 1.20000 levels. For long trades we'll need price reversals from these line and levels.