Cant sleep... not just yet

I should go to sleep i have a long day ahead of me tomorrow, but I have so many thoughts I have so many things I cant get out of my head... it neither good or bad but still this will keep me awake all night... the worst about it is all the thoughts in my head are silly things like: should i buy a new dress, where should I go for my next trip and how nice would it be to enjoy the summer in the hot sand on a quiet beach right now... I fell like dreaming away and still i cant go to sleep... not just yet...