Congrats, and welcome. You've gotten some good wattage advice, and depending on your tank there may be other factors, like amount of air (this is often adjustable) and will affect your vape. If you like a tighter, smaller vape you'll want less air, for an arier, easier draw, you may want to open the airflow more. Also, depending on what you are using in the tank, that may affect wattage= I have to use pure PG as I'm allergic to VG. In 1.8 coils, I have a higher wattage (I use the Nautilus 2 tank) but if I use the 0.7 coils, I don't change the wattage one bit. I do burn through batteries a bit more quickly, but not necessarily more juice. So, there are many variables, but you can certainly start with wattage, and see where you end up (it may be FAR less than the "recommended wattage.) Heck, when I was trying to figure that out, the clerk in my B&M store read me the listed wattage on my coil, having never vaped that high, my next question was "I don't actually HAVE to vape it at that, do I? Because, I don't think I COULD." LOL, he was fine with saying, "You can vape it at whatever wattage you WANT." I appreciated that as I was buying juice, and if he'd answered otherwise I would have been scorching my throat AND burning through juice like crazy.
That said, there's really no "right" answer do what works for you, just don't vape it OVER the recommended wattage, that would suck. Knowing your tank would probably be helpful if you wanted more specifics, but experimenting for yourself is totally fine.
Anna