I work in the tech industry as a data scientist. I generally know how to code with HTML/CSS and Javascript, as I like to attend hackathons where those sort of projects are popular. But I'm not a web developer or front-end engineer. I've never built an entire website from scratch by myself.

Since I'm not designing websites as my profession per se, would it matter if I coded my own website from scratch or just worked off of a template?

And if it's fine to work off a template, are there any preferred websites out there which make it reasonably simple to edit the code (e.g., Squarespace, Wix)?

I'm mostly asking because I assume my amateur web development skills will not end up being as visually appealing as using one of those websites that provide templates. But I expect I would want to add in my own custom code here and there. I'm interested in learning more about web development, but I also would not want to put out a terrible looking website just to get it out there.