To keep it rather simple:
Stops BELOW 18.20 - not AT... you want to be BELOW
support is proving useful for the trade, so far the impulsive moves are small hence this feels like a snail crawling up a slope. Be patient the bigger picture shows we are in a 3rd wave and the strength hopefully should show soon.
My estimate short term target is 18.750
If this falls and breaks through 18.20 you should get out of the longs and just wait for the next entry point.