Outcast anglers

I'm seeking some help. I've started fishing this small lake in billings Montana that holds largemouth, crappie bluegill, sun perch, catfish and tiger muskie. I've fished it thoroughly like 8 times now. Early early morning like smoky water early, afternoons and late afternoons. I use everything I can think of, swimbaits, crankbaits, spinners, frogs, poppers, I use jigs with big and small trailers, worms of all different sizes and colors with a drop shot, Texas and carolina rig and I can't seem to even get a bite. What is it with my presentation or with these fish that keep me from getting a fish? Anything really really helps! Thanks!