You are a Warrior. Keep tinkering and before you know it this will all be second nature. I started last January as a hapless lad who could barely screw a cartomizer; now I can change and fill a carto-tank in the dark, while driving, while vaping a second e-cig, in under 5 minutes. I can eyeball a DIY mix to perfect flavoring & within .05 of a milligram with no measuring tools. I can make any carto last for a month or more and can rig a broken ego with bailing twine and switchgrass. I can build a crude battery from road tar and old paper clips. I am a warrior too, and soon you will be in the vanguard with me.