How to play in a Closed Position? In lower level chess matches I often find myself in closed positions where black and whites knights are restricted, bishops can't be used for attack, and rooks are locked behind your pawn structure. What tips do you have to play in this position, or is it better to play more aggressive and avoid this position all together.

I interpret Closed Position as being, where major pieces are developed behind the pawn structure, where both players prioritized positional plays.

This is an example using the Pirc defense

[FEN ""]
1. e4 d6 2. d4 Nf6 3. Nc3 e6 4. Nf3 a6 5. Be2 Be7 6. O-O O-O 7. h3 b5 8. a3 Bb7 9. e5 Nfd7 10. Bf4 Nc6 11. Bg3 Nb6 12. Bd3 d5


Where the next best move would be for to take the e pawn, but black decides to advance the d-pawn.
It would help to see a specific example of your games. 

Normally closed positions refers to positions with a closed center where the central (e and d pawns, sometimes also c and f pawns) pawns are blocking each other. It is unusual that all 8 pawns are blocked. In this case the normal plan is to attack the center by pawns from the side. For instance in the advance French black is attacking the center by a pawn from c5 and later also from the other side with f7-f6.

[FEN ""]
1. e4 e6 2. d4 d5 3. e5 c5


The technical term for this is pawn break and you can see other examples in the wikipedia article on pawn structure. (Search for "break").