i'm past the point of "i'll do it later" and instead i don't do it at all

this post is mostly related to studying but this issue presents itself in a lot of different aspects of my life. i've always been a big procrastinator and i still am, however i have always been smart enough to keep good, even perfect grades. i still do have pretty decent grades but this feeling of laziness and inability to get things done is killing me.

im in an architectural highschool and plan to be an architect so long term procrastination is going to be very bad. i tell myself ill study tomorrow, ill study later, ill study at night, ill study in the morning, ill study in the bus, ill study at school and then it just does not happen and it honestly does not bother me at all, like im past the point of caring, its not even stressing me out.

it can be the easiest material ever and i can have the answers to that exact exam im doing and i still wont study.

how tf do i fix this PERMANENTLY, because on occasion i can really get spurts of motivation and even study a day or two before, and then for the next exam that mindset is GONE