Welcome, how about start from reading "About this website", so you have Idea about what this website is. Nothing serious here, so feel free to check around. By the way, My name isn't that unique in worldwide range, I'm the one in the Winnipeg.
Yes, if you can pronounce Guangxun without feeling difficult, call me Guangxun, I would really appreciate it, and I know your effort. However, I found people have difficulty pronouncing Guangxun or are at least confused, so I usually directly say call me Jin, which is much easier to pronounce and remember, but please at least remember that Guangxun is actually my first name.