4-3-3 how to play?

[Qambu Yaasi]

I've tried attacking and defensive against different formations but it doesn't work good. What am I doing wrong? I'd played against 4-3-3 several times, I was stronger than my opponents and I couldn't win what's the secret?

Wht Khris says is correct.

Sometimes the wins are decided on the slightest margins i.e. on the corner kick taker or a freekick taker. How many times have you lost the match because the opponents scores from corners and not open play? How many times have you conceded goals due to freekicks scored? I used to kill off opponents because my corner taker was also a wicked freekick taker.

To make a formation work you need players that can fit in that formation. And you need a match winner. Good if its a striker but for majority of teams an MC or winger would make a very good match winner, altho winger does not apply to 4-3-3.