You do not need to follow all these steps. It varies depending on where you are planting your tree, and sometimes, you may be starting with a seed or a mini pot. If you are starting with a seed, this next video helps with the process extremely well, but note it is an extreme challenge starting from just a seed.
You could find seeds or pots at your local stores. Home Depot also sells pots and seeds. The next video is from Mr Beast, and it talks about a project he participated in called Team Trees. Note that some concepts in the video are jokes and immature. The video also shows ways to plant a tree.