I dropped my iPod 2 in a lake

ok so here is my delima,

during the the summer of 2014, I was fishing and I fell into a lake with my iPod in my pants and it wouldn't turn on, so I waited a few months and I forgot about it and last night I tried it and it still worked but the screen was really really dim, you would have to shine a flashlight over it to see it and now I'm trying to fix it. Anyone have any ideas?