If I do a master degree in Germany, I can learn how to research in the automobile industry, which is, of course, very competitive. As for whether it was the right decision, I’m pretty confident and I can’t change my mind now anyway because I borrowed money from my parents to pay for my tuition. I’m going to do my best to complete my course and I will go back to my country with new ideas that will help expand my opportunites.
What is the "as for whether"? I think it's one of phrases.