Is this why I'm a mediocre 5/10 SH player?

[Danenania]

I'm okay with both calling and raising on the flop, but I don't like your turn raise because it shuts down his 3-outers and bluffs. Much better I think would be calling the turn then either calling or raising the river, depending on what comes off and how bad the guy is.

Edit: yeah, what Jeff said.