If I may offer some advice before you set off on this journey, it would be this:

The difficult part is not organising a trip. What really takes time is learning to truly see a place when you are there. Don’t just collect points of interest seen and reviewed on the Internet or in travel guides, but carefully observe what is in front of your eyes. Discover the details, learn lessons, be present in the moment and appreciate what you discover you have more than the people of that place. Learn from their ability to be happy with little, from how they shape nature and draw sustenance from it. Let yourself be surprised by the unexpected, feel immensely distant but, at the same time, extraordinarily present.

Vietnam is a great teacher in this regard. It is a simple country, somewhat chaotic in the cities, but quiet and meditative in the more natural areas.

It is when you do not know where you are going that you discover its humanity and authenticity: in the small, disorderly streets, in the colours and smiles of the people, in their dirty hands that reveal who they are. A country that initially disorients you, but leaves a deep impression.