Gaps
Yeah...gaps are not very nice things. If you're feeling studious you could go to the library or student centre to review class notes. Or if you're more relaxed you could go visit a friend in rez, or even go back to your own rez for a bit. But be careful of having too many classes close together.
Also, I would recommend not having two consecutive classes in buildings very far apart (something like T29 to ABB). If anything, I found that extra gap helpful, just to give me a little extra time.
But for sure, if you can, try to change your classes so that maybe you have 2 hour gaps vs. 1 hour gaps. It's nicer to have longer breaks
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Friday lectures
And 5 lectures on Friday is possible (hopefully not consecutive classes). I had that second semester in first year too. It is quite manageable...I've seen worse (i.e. LABS on Friday afternoon + multiple lectures, or way too many lectures in a row).