Train K952 from Shenzhen to Guilin

Hello,
I am taking a train from Shenzhen to Guilin on December 25th. I am from Hong Kong and I would like to drive to Shenzhen by MTR.
I think I have to take the East Rail Line, right??
Where to get off? And where do I exactly have to go in Shenzhen (where does the train depart from?) Train number is K952.


Thanks a lot!!

Best regards.