Please, i want to go for 2 weeks holidays for this Christmas season

If you apply for a Chinese tourist L type for that. You should first prepare a filled-out application form affixed with 1 passport-style photo, your passport and its photocopy, your introduction letter, round trip air tickets and hotel reservation and an invitation letter from your friend, bank statement. Next, go to the embassy of China to submit the application.

the ticket must be the real one？

No. You can just show the tickets booking records.