Performing qurbaani while one is a musaafir

Q: For Eid, I'm going to see my family abroad. I'm only going for one week so I will be a Musaafir. One condition of wujoob for Qurbaani is that a person is a Muqeem. I am planning to do zabah of an animal there. 

The question is what intention do I make? Is it Nafl? If its Nafl, can I then do esaale thawaab of it instead of doing it from my own side? Or will it become waajib when I buy the animal even though I'm a Musaafir?

Reciting Surah Waaqiah in the sunnah salaah after Maghrib

Q: If we make a habit of reciting Surah Waaqiah in the sunnah of Maghrib, would it be against the sunnah practice as our beloved Rasulullah (sallallahu alaihi wasallam) was not doing it like this? Similarly, we have been informed of the mas'alah that it is not correct to fix a particular surah for a particular salaah, so by reciting Surah Waaqiah in the sunnah salaah, we will be fixing it. Is this correct?

Returning home for a janaazah after donning one's ihraam

Q: What is the ruling for the following scenarios? 

1. A man puts on his Ihrām and goes into Makkah. When he checks into his hotel, he receives news of the passing away of a family member, hence he flies back, in Ihrām, for the Janazah, thereafter returning and commencing his Umrah. Is there anything due upon him? 

2. A couple are going for Hajj. As they don the Ihrām and are about to enter Makkah, the wife's menstruation commences, which will end on the 7th of Dhul-Hijjah, hence after the completion of the husband's Umrah, they decide to spend the remaining time in Madinah. Is there anything due upon the wife?

Maintaining consistency in performing one's salaah

Q: I would like to seek advice on how one can become consistent in waking up for Fajr salaah and maintaining consistency with all my daily salaahs. I find myself struggling, especially with Fajr, and at times I miss or delay other prayers as well. Could you please guide me on practical steps, habits, and any duas or actions that can help me stay firm and disciplined in my salaah?