[ Books & Authors ] Open Question : I'm too impatient to get through this part without making it sound bad? need some advice please?

My story is the ultimate fantasy book, and it has Charmers, Shadow Sculptors, Spirit Walkers, other dimensions, etc... and I'm too impatient to write the slow beginning part, where a ghost finds him on earth. It's coming out like crap so far because I can't concentrate on it because I want to skip to the end and write the interesting part. What do you do, if you experience this at all? Should I just skip to the end and write that first and then go back to the beginning, or really take my time on the beginning and just get it over with? Thanks for answering in advance ^-^