UH Late Orientation

I had a tough time choosing a college, but in the end committed to UH as a bio major. Because of my late decision I was stuck with quite a late orientation, June 25-26. Current UH students, do you think I would be able to fit into morning/afternoon classes? The thought of having to attend night classes is really stressing me out. Also, there is a UH degree plan for bio majors. Should I follow that plan? Thanks!