One of it was a money investment, I had to put out money because after I spent all that money on language learning and came all the way to Japan, I'm like okay, I cannot just let this go, I cannot just not study this after I made this huge investment, you know, it was kind of like an investment in myself and I would feel like it was a total waste of my time and money if I just gave up after that.
というのも、語学学習にお金をかけて、はるばる日本に来たのに、これを放っておくわけにはいかないし、せっかく大きな投資をしたのに、勉強しないわけにはいかないからです。