Could we ask how much you smoked, please?
For me, 3 cartos (the regular size, which are 35mm / 1 3/8ths" long) are equivalent to about 20 cigarettes. I get about 6 or 7 cigarettes-worth from one. It's also easy to work out by the liquid consumed, as a carto holds about 22 drops or 1ml, and most people reckon a cigarette is about 3 or 4 drops of liquid. You're using about 2.8ml a day, which is about par for the course.
There are a lot of things this all depends on such as getting the right nicotine strength and so on, but if you smoked a pack a day then 3 cartos is pretty much normal. If you smoked a lot less than that, it might mean you need to raise the nic strength a bit, so you vape less. On the other hand there is probably very little harm in vaping your head off, to be honest, unless you are in one of the rare categories of people who might need to ask doctor's advice on this - COPD, cardiac issues or whatever.
You are probably using e-liquid to refill with? If not, you soon will be, with your new cartos/clearos. You'll maybe then get a clearer idea of how much liquid, of what strength, you are using. An average is 2.5 - 3ml a day, fairly close to what you are probably doing now. Very light vapers can use 1ml a day, and some ex-60 a day smokers are on 8 to 10ml a day.
Now that's going some
