Arsopu

Hey all, Probably the wrong place for this post.... Need some help in regards to catching trout.. I've never had a problem catching them in a river whether it be browns or rainbows, But I've spent the last month trying to catch them from wentworth falls lake, I know it sounds funny, and everyone who walks past tells me there are no fish in here, I've managed to catch one 55cm brown on my very first cast and a 50cm rainbow but the rainbow I chased the entire length of the lake, I've tried petal tale and wrigley tales, berkley gulps 3" minows in a variety, PowerBait soft plastics, tassie devils, spinners and still nothing. I can see the fish surfacing 10ft in front of me.... Any ideas.