Honestly, it seems like you haven't even figured out how to Vanlife or have a nomadic lifestyle yet. You need to constantly have income coming in.

I have some acquaintances that do this, and they show the glamourous side, but not always the real side. They're not showing when they get up in the middle of the night to teach English to kids in China or that their job for the next 4-6 weeks is backbreaking labor on a farm.

You keep saying "to have something of my own." I'm not sure what you mean by that, It's not like a tiny parcel of land, or even an investment that will increase in value. It's just like any other car or other vehicle.

Almost no one living this life is doing it alone. The best suggestion is to rent one and test it out. Se if you really want to do this after having the experience.