EUR/USD is currently in uptrend on 15m timeframe and a retest to previous higher high is diffidently a good oppartunity to long, the previous higher high also aligns with 0.5 fib level and 20 EMA on 1h timeframe which is even better and stronger confirmation of continuation. A dump to previous higher high (retest) can potenially make hidden bullish divergence on 1h time frame which means continuation of the trend.