That's actually a VERY decent schedule. With just two 1-hour breaks and 12:30 class, that's pretty much perfect! I wish I had something like that in first year. Also, it's very difficult to get a day off with Science, I've been trying to do for two years now but with no luck :(.
I just noticed your Wednesdays, I thought the lab was a 1-hour class. It's best to move it to Tuesday, 5 hours is better than 6 hours of class straight. Also, since it'll be every other week, it can be do-able but it'll still be pretty long so make sure you're up for it!