any tips or plays on how to stop the run with 46 defense?

I am so frustrated...feel like throwing my game away. I'm playing 46 defense with the Bears and no matter what I do, I cannot stop anybody from running all over the field. I just lost to someone and he wasn't that good at all. I just was so horrible on defense and that's why I failed to get a win. Anybody have any good tips or plays for the 46 defense? Right now I just wanna stomp on my game and never play it again...

if u KNOW it is gonna be a run, and just not sure where it is going, i usually pinch and crash the line, blitz the outside LB's, man the inside lb's to either back or te's, and control the safety to follow the play...i'd say 80% of the time, its a 1-2 yard gain, 10% a loss, 10% more...also, bring in blitzes from wherever he has more presence of blockers...the key is gonna be trying to read his tendencies, where he likes to run in which formations, and trying to shoot those gaps, and there isn't one play to do that for u...its ALL about what your opponent likes to do, and how u are going to adjust your defense at the line to counteract that...unless of course, u want to do the nano blitz thing all day long, but beware, that can also be beaten