[todrut]

I'm 47 recently diagnosed with brain aneurysm. Trying to spend more time with family and friends so decided to take up fishing. Have not fished since 13yo. Bought an old cheap boat, few rods and reels, and lots of tackle. Been fishing cordell hull dam(below), Center hill both below and in lake, Percy priest lake twice recently. We just don't seem to have much luck, will catch a couple here and there but many keepers. We caught trout, crappie, small mouth bass, catfish, drum, bluegill, stripers. However they have been very few and small. Like both days at Priest fishing for 7 hours each day we caught 2 catfish and 1 small mouth then the other day only 1 crappie. We don't know what we are doing or where to go.
First biggest issue is learning to use fish finder, of course never used one and best friend bought one for us. Humminbird 597ci HD DI There was a post here of a picture someone took of his showing a bridge. I cannot get this thing to show trees, brush, structure. Have read manual and watched utube videos but just don't understand.
Any hints, tips, help would be greatly appreciated. Even willing to meet at lake if someone would help teach fishfinder ect.
Thanks guys!