Is anyone else terrible at managing their days?

When I have a few big tasks to do I find myself hyper focusing on one and disregarding the rest. For example, lets say I have to study for a test, read a book, do some exercising and take a lecture. 9/10 times I will hyper focus on the most imminent thing and completely disregard everything else even if it’s important. Is anyone else like this? Is my personality just weird? How do you guys deal with stuff like this? I am convinced I have to use up every moment for something specific and the other stuff “can wait” even when it shouldn’t bc it ends up being on the back burner forever.