New job new faces

I started a new job 2 weeks ago and oh my, it is a very busy restaurant. They are 5x busier than my previous job. Although my collegues are friendly and nice, I am exhausted. Every night I come home feeling so tired and weak and I dont even have time to check my email and read blogs. I think I need to find another job. At the same time, I miss Malaysia so much. Why do I have to work as a waitress in London when I can be an engineer in Penang?? This question keeps coming to my mind for the past few days. I really, really feel like packing my bags right away and fly back to Penang. But I dont want to leave L here!! I am so 'fan'.