I've got a really basic website that's just a few pages of text and links. But in WordPress under the hood it's a hundred miles of spaghetti code and stuff I don't use.

I could just write a plain html site that would be sufficient, but I worry about ftp'ing into my server and deleting the whole WordPress install. I also don't know how to force it to load as https rather than http.

Does anyone with more knowledge or wisdom have any pointers?

EDIT: Thanks everyone for excellent advice!