Just vape more… 
I always have 1000 ml of my custard ADV in rotation (500 ml in use, 500 ml steeping), 250 ml each of my 3 other favorite mixes (remix when down to 100 ml of each) and around 200 ml of test mixes.
I only vape MTL, mainly use RTA’s and usually go through 25 to 40 ml of juice a day. Yes, I probably do have a problem… At least my wife say’s I do, so I must have!!! LOL!