Here some tips:
Dont use hit stick to make a routine tackle. Only use Hit stick when you KNOW you can get a clean hit in. It's kind of like throwing a haymaker in boxing.
Try not to over do it with blitzing. If you are playing the game on all-madden, the computer is simply too good to be blitzed every down. They will pickup the blitz and exploit it.
One thing that I constantly work on, is swatting the football down rather than going for the interception. That doesn't mean I don't go for interceptions, but like the hit stick, you need to be in a good position to go for INT'S. Generally on bombs, I am just looking to knock the pass down.