Devil, I'm only doing slightly better than you in master league 3 stars. In about 10 games I have 1 loss and 9 ties. I'm doing very well in defence but I can't get a goal. The one time I scored I screamed out loud. That's the difference beween WE8 and FIFA, I don't wake up the neighbours while playing FIFA
I'm hoping though that it will get slightly easier as soon as I can trade for a decent striker (and I get more practice).
I'm slowly getting more chances at goal, side attacks seem to work the best. Often if you run along the sidelines, the computer will just knock it out and you still keep possesion. The double tap cross (B) has worked well for me in creating decent chances. Even though I'm using the most offensive formation, defence still seems solid. I used to rely a lot on double teaming button (X) but I'm getting better at 1on1 situation with A and B buttons only.
Challenge training is a brilliant feature in helping to learn the game without having to memorize the manual. Earn a few stars in there and you will see immediate pay-off when playing a game.
So far I'm really enjoying the game even though I am not a huge soccer fan (I just like to watch the World Cup).