Have you noticed, how the opponent are scoring against you?
From your tactic, I see different weaknesses.
1) You have bad cover on your wings.. So I can imagine, it would be easy to play wide against you, and scorer from wings.
2) When you have a High defensive line - its easy to play a long ball behind your defenders. When you also have a high pressing line, that means your players are pressing across a large area, and this opens areas between your lines, that the opponent can play in, and get into dangerous positions.. When I play with a High defensive line, I like to lower the pressing line - This is to make it narrower between my lines, and make it more difficult to create chance against me - It does however, open up for their defense to play a long ball - But in my opinion, that is less dangerous.
But it really depends on how the opponent are scoring against you.. Make notice of it, and try to prevent it.