Hey I know how stressful and scary first year can be but honestly it will all work out for the best! You do choose your room style but it is basically all a lottery system unless your special request is a valid one. I was SO WORRIED about the bathroom situation and I ended up with my last choice...a traditional double in Mckay. But i can honestly say i wouldn't change it if I could!! For Mckay (and alot of the other residences) it isn't a communal bathroom but for every 4 rooms there are two bathrooms. They are cleaned daily and i can guarantee you will NEVER have to wait to use a washroom. They are private, single washrooms.
As for your program, make sure you look into the second year programs and have an idea of what you want to take! Theres so many options anything from BioPsych to BioChem to Neuroscience, Psychology and Behaviour, to just Honours Life Sciences...which is the one im going into. You don't have to choose right away just figure out what courses you have to take to be eligible to enter into that program if you so choose.
http://www.science.mcmaster. ca/ass...ife-sciences-1 gives you a general overview of the courses you can take.
Now my personal opinion: I have looked at the tentative Master Schedule for the following year for level 1 Life Sciences (my cousin and friend are both going into it) and I wrote down what semester to take which course in and which prof I would recommend
Chem 1A03: Term 1 GET DR BROCK IF YOU CAN --everyone loves him, great prof, really approachable and helpful
Chem 1AA3: Term 2 I had Dr Lock and she was GREAT but either her or Dr Brock are a good choice!
Bio 1A03 --TAKE TERM 2 with kajiura! I had a split class between her and the other prof, and kajiura was by far better. She is great at explaining things and makes everything crystal clear so there is no room for misinterpretation.
Bio 1M03---TAKE TERM 1... I had Quinn/Evans in second semester and it was honestly such a hard course compared to my friends who took it in the first semester with the other professors. The first midterm over 75% of the class failed...and that wasn't because the material was hard.
Psych 1X03 and 1XX3 you dont have a choice..the only prof is Dr Kim!
Math 1LS3 - get lovric! --or you can take Math 1A03
Physics 1L03 (if you havent taken grade 12 physics) term 2- Nejat is the only option here
but if you have taken high school physics and want to take Physics 1B03 go for Hughes as a prof.
These are most likely your 8 main courses you will take and then you will have the option to take 2 electives!
Hope this helped ease some of your stress! Hopefully you choose Mac next year because it really is an amazing school!