Looking For Some Help

Our lemon cucumbers have many flowers, but little fruit. I checked with Farmer Google on this, and he said I have a pollination problem (garden ED?). The remedy is to take a small paint brush, find a male flower, swab it, then apply the brush to a female flower. Hard to differentiate the two, so I just swabbed many of them, then swabbed many others. I’ll let the flowers figure it out. I did see and hear bees working there, so maybe they have nature’s way to solve this.