Koiralaji, Ahile tension lera kaam chaina. As you are aware of your obligation to finish your PhD within 3 yrs, just focus on it. If you feel lonely at times, find better ways to kill it rather than smoking and sulking. Yeso Sajha ma hangout garay pani huncha. Think of this scenario: Let's say you get married with someone from Nepal in the very near future. Tapai ko srimati lai Japan lyaune visa ko tension (I am not sure hai Japan ko case ma kattiko garho cha tyo kaam). Even if it happens to be an easy task, think of the situation once she is there. She probably can not legally work, and you are busy with your studies. She stays home without virtually anything to do. That will be a torture for her. At the same time, due to your academic obligations, you will be barely able to enjoy your married life. Furthermore, think of the additional expenses that you need to support her. If you have a child at the same time, then it is going to be even more difficult. Tesaile ahile khurukka padhai ma focus garnus, and enjoy your time with more freedom and less responsibilities. When you go back to Nepal, I am sure your folks will have a bunch of kanyas ready for you to choose. If you still don't know what kind of person you want to spend the rest of your life with, at least you can compare the presented candidates and decide which one is more suitable for you. Chitta bujhdo kohi bhetie, get to know her better, ani dubai jana ko man milay jhyaai paaray bhaigo.