Help with S6 subject choices

Hi, I'm currently in S5 undergoing my S6 subject choices. I'd like to study Dentistry at Glasgow Uni ideally, but I'm open to other unis as well as I'm aware how competitive it is.
I'm torn between picking -
Advanced Higher Chemistry
Advanced Higher Maths
Advanced Higher Biology
or
Advanced Higher Chemistry
Advanced Higher Biology
Higher Psychology (crash)
Human body college course (SCQF level 8)
or
Advanced Higher Chemistry
Advanced Higher Biology
Human body college course (SCQF level 8)
My 2 friends who are applying for medicine are going for the first option, but I am worried about the workload as they are quite taxing subjects. I'm predicted 5 A's at Higher, and I'm pretty sure I COULD achieve 3A's at AH, but juggling a part time job, volunteering, and sports plus 3AH's may be too much, even if I do well in school. Psychology is just something that I am interested in, and wanna learn more about.

Hi, I'm currently in S5 undergoing my S6 subject choices. I'd like to study Dentistry at Glasgow Uni ideally, but I'm open to other unis as well as I'm aware how competitive it is.
I'm torn between picking -
Advanced Higher Chemistry
Advanced Higher Maths
Advanced Higher Biology
or
Advanced Higher Chemistry
Advanced Higher Biology
Higher Psychology (crash)
Human body college course (SCQF level 8)
or
Advanced Higher Chemistry
Advanced Higher Biology
Human body college course (SCQF level 8)
My 2 friends who are applying for medicine are going for the first option, but I am worried about the workload as they are quite taxing subjects. I'm predicted 5 A's at Higher, and I'm pretty sure I COULD achieve 3A's at AH, but juggling a part time job, volunteering, and sports plus 3AH's may be too much, even if I do well in school. Psychology is just something that I am interested in, and wanna learn more about.

Hi, I'm currently in S5 undergoing my S6 subject choices. I'd like to study Dentistry at Glasgow Uni ideally, but I'm open to other unis as well as I'm aware how competitive it is.
I'm torn between picking -
Advanced Higher Chemistry
Advanced Higher Maths
Advanced Higher Biology
or
Advanced Higher Chemistry
Advanced Higher Biology
Higher Psychology (crash)
Human body college course (SCQF level 8)
or
Advanced Higher Chemistry
Advanced Higher Biology
Human body college course (SCQF level 8)
My 2 friends who are applying for medicine are going for the first option, but I am worried about the workload as they are quite taxing subjects. I'm predicted 5 A's at Higher, and I'm pretty sure I COULD achieve 3A's at AH, but juggling a part time job, volunteering, and sports plus 3AH's may be too much, even if I do well in school. Psychology is just something that I am interested in, and wanna learn more about.

As above, doing 3 advanced highers or even a college course as well won't help you out, it is essentially a waste of your time. I would recommend you do AH bio and Chem as they are required by the uni, as well as the higher Psychology, then as many free periods as possible. My school does a volunteering award for S6s, which is essentially an extra 6 free periods a week as you only needed to do like 20 hours of volunteering to complete it, so look into if your school has anything like this.
However, if you want to apply down south, you will need the 3AHs, so keep this in mind if you want to go to apply to an English uni.
I've gotten into 3 medical schools so far, each only requiring 2Bs at AH as their condition (same for Scottish dental schools), so don't put more stress than needed on yourself. Doing work experience, volunteering, the ucat, interviews etc. takes a lot out of you so keep school as simple as possible. Oh yeah, get 5As at Higher!!! and do your best in the ucat (it is horrible but you will survive!)
Best of luck!

Thanks for your help, the college course is kind of a filler subject in a way, as my school requires you do 4 subject unless you're doing 3 Advanced Highers. It's only 2 periods a week, and I assume it'll be easier than doing another higher.