Also I just read some of your blog about learning Chinese :) Haha, I can totally relate to some of it. What I noticed is, that when I speak Mandarin with locals (on vacation, because I am not living there), they are always super happy, that I speak their language and they make an effort to speak it with me. This might be dependent on the region one is in. From your writing I would guess you might be in Taiwan or HK, and while I have been in HK, I have never been in Taiwan and I don't know how people handle it there. I have mostly been in southern China and it's always been great and an overwhelming amount of people were very friendly and welcoming. Of course living there and traveling there for a while are 2 different things and experience might differ. If you happen to visit Berlin, feel welcome to visit our Chinese language meetup (https://dragon-descendants.de/en/) and if you want you can ask for me, 小龙.