How to install Craft 3 on shared hosting

Question

I would like to learn Craft 3 CMS.

I would like to do so by installing it manually on shared hosting. I am not familiar with Composer and would like to learn Craft before committing to learning Composer.

I do not understand some of the steps given at: https://docs.craftcms.com/v3/installation.html

So I searched for manual installation of Craft 3 on shared hosting on the net and did not find any helpful articles. Examples on the net are based on using Composer or Craft 2 or using a local dev environment, etc.

So I have come here hoping that some people will help me out with the steps I don't understand at: https://docs.craftcms.com/v3/installation.html

Here we go:

Extract the archive wherever you want your new Craft project to live.

In my case my shared hosting provides me with the following directory structure:

/home/[accountname]/public_html

I am used to developing with Wordpress and if I use shared hosting I will simply put all of WP in a folder named the same as the domain, eg:

/home/[accountname]/public_html/example.com

So I am not sure where I should upload the Craft files to, also because of the next step below.

Directory Structure

Once Craft’s files are in place, your project directory should have a directory structure like this:

my-project.test/
├── config/
│   └── ...
├── storage/
│   └── ...
├── templates/
│   └── ...
├── vendor/
│   └── ...
├── web/
│   └── ...
├── .env
├── .env.example
├── composer.json
├── craft
└── craft.bat

TIP

The web/ folder represents your site’s webroot, and it can be renamed to whatever you want (www/, public/, public_html/, etc.). "

If I were to install these files in eg:

/home/[accountname]/public_html/my-project.test/

Then this becomes confusing to me because I once managed to install Craft 2 on shared hosting and Craft 2 installation instructions made it clear that I had to install most of Craft 2 above the webroot:

/home/[accountname]/craft/

And I had the craft webroot at /home/[accountname]/public_html/craftsite/

But if I upload craft to:

/home/[accountname]/public_html/my-project.test/

Then obviously all of Craft is under not above the webroot. I imagine this could be very insecure....

But the Craft 3 instructions do not mention that I need to install some folders above the webroot.

I also feel I have 2 webroots now:

My shared hosting tells me that I have a webroot at: /home/[accountname]/public_html/

While Craft is saying my webroot is: /home/[accountname]/public_html/my-project.test/web/

Maybe I need to install Craft 3 above the webroot, eg:

/home/[accountname]/my-project.test/

And then the Craft webroot would be:

/home/[accountname]/my-project.test/web/

But I also have a webroot at:

/home/[accountname]/public_html/

So now I also have 2 webroots....

Step 5: Set up the Web Server

Create a new web server to host your Craft project. Its document root (or “webroot”) should point to your web/ directory (or whatever you’ve renamed it to).

I my case I dont believe I can create a web server - I am stuck with the shared hosting server.

So I am not sure how to handle this step.

I am sorry if I am missing some very obvious things here.....

Any help would be very much appreciated.....