You are playing a lot of doubles, but you are in a rut and not having fun. Have Fun!
 
Start taking some chances and try to become more aggressive at least some of the time.
 
Start making something happen, instead of waiting to lose.
 
Try to follow your first serve to the net at least once every service game. If you win the point doing that, try it again.
 
Do not serve and volley every time and do not serve and volley very often on your second serve, unless it is strong. Remember, serve and volley on your first serve sporadically.
 
For fun, take your opponent's weak serve and follow it to the net. Many of your opponent's second serves are weaker than their groundstrokes. A typical scenario in doubles is you getting the weak second serve return back to the server and staying back. He/she gets to start the point with a huge comfortable groundstroke, putting them in the offensive, after serving a very weak second serve. Taking the second serve and moving to the net behind it does several things:

• It allows you to take the offensive
• It puts great pressure on the server when they see you advancing, making unforced errors
• It forces the server to hit out of their "comfort zone"
• It is "Fun"
• The "Party" is at the net.