Daphane

Hey everyone, I just moved to Kowloon a few days ago and I'm still trying to figure out the transport system here. I need to get from Tsim Sha Tsui to Causeway Bay for a job interview, and I'm totally lost! Is the MTR the best option? I heard something about the Star Ferry, but that seems like it takes longer. Also, what about buses? I saw a bunch of double-deckers and got confused. I'm a bit stressed because I don't want to be late. Any tips on the quickest route? Also, is there a card I should buy for the MTR? I saw people tapping their phones at the gates – is that a thing? Sorry for the basic questions, but I'm really new here and everything is overwhelming. Thanks in advance for your help!