I too will contribute to confusing someone new. Learning to build your own coils really pays for itself. This morning I'm vaping on a coil that I know is at least three months old. It's a Nichrome 80 fused Clapton hitting around 0.25 - 0.30 Ω, 5 wraps around a 3 mm Inner Diameter coil jig tool.
It is in an RDA called a Gorge. This RDA is a single coil only setup. Placing a coil into the deck on a Gorge takes just a few minutes to get the hang of doing. Even so it is one of those which will probably take a lifetime to master.
Still, I rather enjoy having a coil that has gone for three months. It might need a little touch up cleaning here after while. I'll rinse it off under the tap, then dry fire until the coil glows. Put some Muji cotton back through it and after a squonk or two, ready to go again.
I use heavy VG (vegetable glycerin) in vaping, mainly because to me it does good for flavors. That might sound contrary to many who advocate PG (polypropylene glycerol) as carrying flavors better, so what? For me it works out the opposite way. The point though is I do know VG can make a coil get kind of gunked up a bit more and more quickly. I just rinse it off every now and then and all is good.
Eventually the coil will get into a stage of where rinsing it off won't help. Not a big deal, I got 250 ft spools of NiChrome 80 in 28 and 30 awg. Bought each for around $6 a spool. I can build another fused Clapton if I want, or maybe just go single strand of 28 awg wire. I could even use some Stainless Steel wire if I had it on hand, or Kanthal A1. Figure I'll get well over two to three hundred coils, compare that to $5 for a cheap 5 pack of pre-built coils that might have 1 coil last a week.
Economics isn't the only reason I enjoy building coils either. For me it is a soothing hobby. It's also something I can enjoy as a "I made this" kind of thing. So yeah, watching a few Youtube videos and taking a few minutes to learn the basics can get you hooked.