HELP!!! Sophomore schedule!?

It's hard to judge these courses seeing as courses differ from high school to high school and teacher to teacher. My advice is to ask people at your school how hard these classes are at your specific school. But certainly colleges want to see variety in your schedule and that you're pushing yourself by taking harder classes. Especially for Berkeley, they want the best of the best. I'd say take the hard classes, you can drop down a level if they're too hard. You want to make yourself as marketable as you can for colleges.