I think everything that could have been said in this thread has been said. The majority of people are trying to explain how difficult this schedule will be. You definitely understand that because you know exactly what it will take. If you feel like you’re doing what’s best for you, then go ahead with the schedule. There will be no “pieces of evidence” that point you in the right direction. You are not the same as anyone else, so people’s opinions are the best you’re going to get.
You’re obviously smart and ambitious, so props to you if you think you can handle the schedule. The fact is that you will get less than 6 hours of sleep a night, and this will be very hard on you mentally/physically. If you think that it’s worth it because you love everything you do equally, then keep doing what you’re doing. We don’t know you or your limits, so it’s best not to ruminate on thoughts like “Should I? Should I not?” You are your best judge, in this case.
I also empathize with you. I, too, had an extremely difficult schedule because of dance (classical ballet with a super prestigious company outside of school). I feel like I handled my schedule very well. The only difference for me was that I realized I didn’t love doing it anymore, so it wasn’t worth the hours. I don’t think it is the same situation for you, so keep sticking to things you’re passionate about.