I received my v4l on sat. been vaping ever since. I got 18mg is that enough to get good vaper and th. now im trying to fill them . do I put the little plastic cap on the non mouth piece before i fill. i didn't and some juice was leaking out. and can i start vaping again right away. i haven't had a analog since sat. at 3pm and trying to not think of analogs. looks like a put only 6 to 8 drops and looked to full how do i get 20 to 25 drops in. please please help. thanks