From China to Vietnam

I’m typing this sitting on a soft sleeper train, in the dark, on my way to Hanoi while a chinese guy is snoring next to me, as it’s 20:44 and I definitely don’t feel like I want/can sleep. Today is January 2nd. (yeah, I know, this is late) My time in China is over and my Vietnamese visa started on the 1st of January for 30 days. From Guilin there are different ways by which you can get into Vietnam.