Senior. I've got another year, year and a half to go. Changing majors set me back.
And I do have classes before 2 PM... but I only have classes two days a week, so it evens out. Three classes from 11-3:15, then one class 5:30-8:15 on Tuesdays, same on Thursdays minus the 5:30 class.
A major is important, it's good you found one you've enjoyed. One of the few good things Woodrow Wilson came up with. Don't be in any rush to get out of college. I was semi-kidding about the times--I had some morning classes my senior year because I enjoyed the subject matter (e.g., Astronomy). I would get up early if I was intrigued by the material.