Can someone improve my fish movement?

I have posted a small .capx I have my fish randomly swimming around, but it occasionally swims upside down which is frustrating, and I have tried and tried. perhaps someone can take a look at my Events and see whats wrong? Thanks. https://www.dropbox.com/s/6khe8ru97etf32w/test.capx

One of the ways to go:

Kastas yes thank you that looks much better, at least I wasn't completely wrong lol just most of it. Thanks again