An exercise with Google Maps shows that it takes 82 hours nonstop to travel overland from Copenhagen to Quetta, Pakistan, a distance of 7,302 kilometers, via Istanbul, Tehran and Zahedan. It takes 78 hours nonstop to travel from New Delhi to Moreh, India (a border crossing with Myanmar), to Yangon and Bangkok, a distance of 4,466 kilometers. That's a total of 160 hours nonstop, not including the distance from Quetta to New Delhi (the land border between Pakistan and India remains closed). With one to two months of travel roundtrip from Copenhagen to Southeast Asia, it's perhaps doable but you are likely to be exhausted and annoyed at all the delays, red tape and other difficulties crossing the various borders. What you plan to do in one to two months is a tall order. This is not to discourage you from traveling, but to encourage a sense of reasonableness in your planning. Or, you can simply go as far as you can for the adventure, mindful of the risks.