"You who have caused your own injuries because of your anger". Here Bildad is stating that it is because of Job's anger and disobedience that he has been injured, not because of God's anger as Job has previously claimed.
"asking God to let you, a guilty man, go free is as silly as asking for God to forsake the earth for your sake or for God to move the rocks out of their places to please you!". This question suggests that letting Job, whom they consider a guilty man, go free would be like changing the whole world.
"should God remove the rocks from their places" or "should God move mountains around". The word "rocks" here refers to large rocks, such as those in the mountains.