Self teaching highers?

I wasn’t able to be put into a biology class this year, but the subject is really important to me. Is it possible? How does it work & how do I do it? What steps do I take?

Hi,
I self taught higher Chemistry this year, and I just worked my way through the course spec then went to class when it was time to complete the assignment.
Im expecting an A.
You should deff talk to your guidance teacher to see if that is possible.
And use the 2 in 1 book when revising. (it helped me sm when i did Higher biology in S5)

I wasn’t able to be put into a biology class this year, but the subject is really important to me. Is it possible? How does it work & how do I do it? What steps do I take?