i thought mac is suppose to be gud but.......

Yup!

Well, what the make up artist does on you will look amazing because they are professionals and thats their job.

You need to go to a counter, pick up a brush and experiment with different shades until you find the one that works for you. If its a non-desi make up artist, ignore whatever they say. I find non-desies really dont know what to do with South Asian skin tones.