请帮我看看这篇英语作文是否有语法的错误,如有请指出,MyFavouriteFestivalMyfavouritefestivalisMid-AutumnFesitival.ItusuallycomesinAugustorSeptember.Onthatday,Ioftenhaveabigdinnerwithmyfamilymembers.Afterdi

　　请帮我看看这篇英语作文是否有语法的错误,如有请指出,

　　MyFavouriteFestival

　　MyfavouritefestivalisMid-AutumnFesitival.ItusuallycomesinAugustorSeptember.Onthatday,Ioftenhaveabigdinnerwithmyfamilymembers.Afterdinner,wegoouttowatchthemoon.Sometimesweuseatelescopetowatchuit.Onthatday,wearenotonlywatchthemoonbuthavebarbecueaswell.IreallyenjoymyselfatMid-AutumnFestival.