Baby steps:
First do a one day ride. 60-120km. Don't make it too easy and don't kill yourself. Plan a lunch on the road
Second, do one nighters. You decide whether to camp or a bed. Be sure it is long enough to arrive at your destination late afternoon, early evening.
At that point, you should have an idea of what you prefer. Camping, beds and showers, solo, groups and if your bike is the right steed for your tours.
If you are still convinced that you want to throw yourself into touring, then plan longer trips
As for technical, there are literally thousands of videos on YT that explain everything
Cheers