Check https://www.python.org/downloads/ for python versions.
This tutorial is older, he is using 3.11.1
So if tutorial is not working switch to other computer
For now, Leave python be on this computer so other project don't get messed up right now
Like python above, leave be until something doesn't, switch computer. See site here for commands https://pip.pypa.io/en/stable/installation/
python -m ensurepip --upgrade
If you are on windows, you will need to install virtualenv https://pip.pypa.io/en/stable/installation/
C:> py -m ensurepip --upgrade