if you cant find anything you did wrong or could have done better, you aren't being objective and improvement will be slow or non-existant. You arent the analyst or the coach, so there is no reason for you to criticize or even give a thought to what your team did unless somehow you can find a way to loop that back to something you can change about your play.
There is a reason its called solo Q, and its not just because of how many people can Q up. Its because its about you and what youre doing to help the team win. You are the only aspect of the game you have under your control, so forget about your team feeding and focus on what you can do to create a win condition somewhere down the road.