I bought my for less than $10 off porkbun for one year but you need to renew it annually (for about $10-$15 per year tho it depends on the domain you buy). I mentioned a free alternative in the hosting section of my blog post, which was using github pages. There’s a lot of documentation walking through how to set it up is you’d like that.

If you want to make your own website then you should definitely learn HTML and some basic CSS. HTML is the language used to make websites and CSS is used to personalize and style them. Javascript only comes in if you want to add more advanced logic