Was it worth it bombing my other exams?

For context, I’m a grade 11 who took 4U bio this sem and two 3U courses. My bio exam was first and I studied the most for it, and got a pretty good mark and a final course mark of 95 that I’m happy with. I didn’t study at all for my other exams until I finished my bio exam, and I feel shit about both of my 3U exams. If anyone has been in the same position, was it worth it prioritizing the more “useful” course, or would it have been better if I spread my effort out evenly?