HOW CAN U GET THE MOST OUT 3-4 DEFENSE ONLINE AND IN LEAGUE PLAY

I AM GETTING TOTAL BURN WITH TRYING TO USE THE 3-4 DEFENSE ONLINE AND IN LEAGUE PLAY. MOST TIME THE PLAYER THAT I GO AGAINST IS ABLE TO HAVE HIS OLINEMEN EITHER SMASH MY DEFENDER OR JUST TOSS HIM COMPLETELY OUT OF THE WAY. IM NOT ABLE TO GET IN PENATRATION ON THE OFFENSE OR THE QB AND THEN MOST GUYS ONLINE TEND TO RUN BACK 10 TO 15 YARDS OR ROLLOUT COMPLETELY AND THEN SHRED THE DEFENSE BECAUSE OF THE TIME THEY HAVE TO THROW THE BALL OR LOOK OVER THE DEFENSE THAT BEING PLAY AGAINST THEM. SO I ASK HOW CAN I GET THE MOST OUT OF PLAYING THE 3-4 ONLINE. PLEASE DONT SAY NANOS MOST GUYS HAVE SEEN THAT CONCEPT AND WELCOME IT TO TEAR IT APART. I AWAIT YOUR ANSWER ON WHAT CAN BE DONE TO COMBAT THIS PROBLEM AND THANKS ALC

3-4 defense takes tons of skill to use. Mix up your D in it. Don't be afraid to blitz 3 straight downs, don't be afraid to drop into a zone 3 times in a row. Next time you get into an online game or league, i recommend going with a hard blitz the 1st play of the game and knock his play backwards. This will show him whose boss for the rest of the game. He start playing differently like passing short or throwing more. and then your opponent becomes very predictable, and you will start to win more games.

Try blitzing more often and putting LB's at DT's