Personally,
I do NOT recommend a novice to attempt to use an RBA (rebuildable atomizer) as suggested above. These are advanced juice attachments better left to advanced users. There's much more involved that just wrapping a wire to make a coil. I won't go into all of that here, but stick to over-the-counter juice attachments for the time being.
For your first e-cig device, you don't need a $200 outfit. You can put together a setup for under $100 easy that will provide a very satisfactory vape experience capable of making a lot of flavorful vapor.
First, you'll need a battery device. I suggest either a variable voltage Ego battery setup or a variable voltage MVP.

Vision Spinner ego-type battery, with Kanger Protank juice attachment

MVP with an Innokin iClear 30 clearomizer.
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The
Vision Spinner or a
Joytech Twist are ego-class batteries which are tube-shaped and rechargeable. They come in different lengths, which determines how long they will last between charges. Juice attachments are connected which are what makes the vapor from flavored e-liquid.
eGo-C Twist & eGo Spinner Battery - Electronic Cigarette - AltSmoke
Video Tutorial for the Vision Spinner
Gear Setup for a Vision Spinner/Joytech Twist
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The MVP is a variable voltage box-shaped mod about the size of a box of cigarettes. It has a non-removeable/built-in rechargeable battery which can last 2 - 3 days between charges. It can also be used while you charge the battery (pass thru). It also uses the same juice attachments as an ego battery. The advantage of this over an ego is the extreme battery time available with the MVP. Innokin MVP 2 iTaste Kit - AltSmoke
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Juice attachments:
Is it a carto, a tank, or what?



View attachment 276473
Pyrex glass cartotanks on MVP's, Innokin iClear 30 clearomizers, Kanger Protank clearomizer, Kanger Evod clearomizers, Vision Mini Vivi Nova on an ego Twist.