Welcome Vannie!
Your body will let you know if you're vaping too much (you'll get light-headed and/or nauseous most likely.) Many of us vaped and smoked at the same time. I finally got to a point where I'd spent enough on vaping goodies that I couldn't justify spending any more money on cigarettes.
You might want to have a few different levels of nic on hand. Higher doses for more stressful times; lower doses when you're more relaxed. When you feel like reaching for a cigarette, try taking a couple hits on your pen. If you still want to light up, no one here will condemn you - each of us travels a very different path.
Think of ECF as a support group, if nothing else. Many wonderful folks here, each of whom has a story to tell....
Well put. For me when I started reaching for my vape while I had a lit cigarette in my hand I realized it was time to cut the cord.