What is the general process for building a website from scratch?

**TL;DR: What are the basic steps I need to follow to build a website from scratch?**<br><br>**Context:** I'm working on a project that requires me to build a website from scratch. I've built websites before but I've always started from scratch, and I've never really followed a "standard process" (although I've probably accidentally stumbled upon the basic steps by following general guidelines on the web). I feel like I've been doing this in an inefficient manner, and I want to make sure I'm taking the correct steps for this project so that my code is robust and maintainable. <br><br>**Question:** What are the steps I need to follow to build a website from scratch? I'd like to know what steps I need to take during the planning, building, testing, and deployment stages. I have some experience in HTML/CSS, JavaScript, and a little experience in SQL. <br><br>**Goal:** Build a single page website that takes some information from a form in the website and then generates a report on how much money the user is spending on different things. This requires me to have a backend that will generate this report, and to have a database to store all the information. I'd also like to add some JavaScript magic.<br><br>**Note:** I'd like the steps to be applicable for other types of websites as well. I want to understand the overall process for building a website, not just the process for building the website that's described in my "goal" section.<br><br>**What I've tried so far:** I have a basic wireframe of the website, and I also have a backend API written in Flask that uses a PostgreSQL database. <br><br>**Additional information:** I'm planning on hosting the website on AWS, and I'm planning on using Docker.