Confused when enrolling for a double major

Hello, I am doing a double major in chemistry and medicinal chemistry I've already chosen my core units and my 1000's science (chem 1A and chem 1B) which are the same between my 2 majors. I've also taken a 6 credit OLE class, what do i do now because i cant chose any of the 2000 or 3000 level classes, do i chose elective classes if so what should i do.
sorry for the word vomit but i am just panicking right now any help would be greatly appreciated.