You have decided. There is no going back. You will park your routine life for a few weeks, months or years, you will hang your backpack on your shoulder and you will travel to discover that world you have read so much about and dreamed of. But then the question assails you: Where to start
The world is very big and there are many options.
Assuming you want to take a long and distant journey, the options are usually America, Oceania, Asia and Africa.
Having traveled part of those places, if you are new to the art of leaving Adventures with backpack and low budget, I recommend you choose Asia. Plus specifically, Southeast Asia. Next I will argue why my advice:
In my life as a traveler, I have come across few backpackers who were left over from pasta. If I found them in 10-bed hostel rooms, eating at street stalls and doing all the excursions on their own, I usually wanted to say only one thing: they were going with the right thing. Same as me.
The issue of the cost of living at destination completely leaves Oceania out. Though New Zealand It has affordable prices, Australia It is prohibitive.
We have three left. Contrary to what many believe, traveling through Africa independently is not so cheap. The shortage of everything causes accommodation and transportation to be more expensive than in many other places.
Between South America and Southeast Asia, the latter wins. I was in Thailand in 2004 and 2011, and the prices had not changed a bit. You will not find the quality / price ratio of Thailand anywhere else in the world. The surrounding countries - such as Laos, Cambodia, Myanmar (although now somewhat less), Vietnam and even Malaysia - are not far behind in this regard.