yep it is, but you should look into grinds, or notes from some teachers in your school as the course is very very long and requires some explaining regarding how to answer exam questions and what you specifically need to know
If it is something that you enjoy then yes, there are lots of resources online including videos on youtube by channels like crash course, biology bugbears, Khan academy, etc. There are mandatory experiments that you have to do and an ecology study so you would probably want to ask a teacher about whether or not you can skip them/ how you could do them. Most of the course isn't very difficult but there is a lot to take in, again if you have an interest you will retain the information more easily. Good luck!