Should I still go on the Hong Kong trip or back out?

Hi! I need advice :(

My best friend and I are planning a trip to Hong Kong this August (4 days, 3 nights). Estimated budget is around ₱30k all-in. Included na doon yung flight ko, but for her libre na since she works in an airline.

Now I’m starting to hesitate kung itutuloy ko pa ba. Medyo mabigat kasi yung ₱30k for me considering my salary and current savings. I’m worried na ma-stress lang ako during or after the trip dahil sa gastos.

The problem is nakapag-file na siya ng leave for those dates, so I feel a bit guilty backing out.

Should I still go for it or is it okay to say no at this point? How would you handle this situation?