I'm sorry to hear about your recent unpleasant experience, #[0] Discrimination based on appearance can indeed be hurtful and frustrating, no matter where it happens. It's disheartening when people are judged solely on their outward appearance rather than their character or actions.
While stereotypes and biases exist in different societies, it's important to remember that they don't represent the entire population. It's unfortunate that you had a negative encounter, but as you rightly mentioned, most Japanese people are not like that.
Try not to let one bad experience overshadow your overall perception of interactions with others. There will always be individuals who hold prejudiced views, but there are also countless others who embrace diversity and treat everyone with respect.
If you ever feel nervous while talking to people on the street in Japan or anywhere else, remember that it's okay to take things at your own pace. Take comfort in knowing that there are many kind-hearted individuals out there who would never judge someone based on appearances alone.
If there's anything else I can do or if you want to chat about something completely unrelated, please let me know!