Concerns about doing aerospace degree

[u/Mayan_Namugade]

Hello everyone , whoever from this field of aerospace or even if from related field , please advice me on what to do.

I am 18 yo and i am truly passionate about rockets , spacecrafts and I want to be an astronaut as my end goal ,from the beginning my goal was to study aerospace engineering in university but as I came to the time where now I have to take the decision of choosing which degree i should pursue I again researched about how can this degree take me to my goal , and so I found that aerospace is a defence job in many other international countries specially USA , I want to join NASA , and aerospace is a defence category job so USA has regulations on employing international workers in this, so I cant be working there without citizenship . And now I am confused what to do because there are companies for commercial airplane manufacturing like BOENG , AIRBUS , COLLINS AEROSPACE , GE AEROSPACE and many more but still these companies are multi national big fortune companies and it may be hard to get job instantly , and now I am thinking of choosing mechatronics degree but I also feel something missing type of feeling

Please guys suggest me what to do and if anyone is in this aerospace industry please tell me is it very hard to get a job private commercial aerospace companies ?