How can you beat level 51 in Bubble Struggle 2 Rebubbled

I would suggest going up to the top level first being very careful not to touch the white bubbles. You cannot shoot them but they can kill you. Go to the right first again, being very careful (this takes practise or just luck) shoot the bubble at the end and work your way back to shoot the bubble on the left. Then go back down to the bottom. Be sure not to get overloaded with bubbles. I found this level difficult too - it just takes practise. Good Luck!