Hey there!
There are a variety of resources you can use, both free and not free. What kind of resources are you looking for? General advice for each subject or content specific resources?
As for free resources, I'd suggest checking out the
AN notes section for free notes from past students (seriously, how good is that?!

)
Also, you can navigate through the
VCE Subjects + Help section of the forum where you can find a thread with resources stickied (pinned to the top of the subject board).
You may find that Lab Skills is lacking in resources on the forum as it is not as popular as some of the other subjects you're doing.
There are also paid resources available.
For example, ATAR Notes create their own VCE resources, which can be purchased from a
bookseller or the Shop tab (either at the top of your screen for desktop or by clicking on the three horizontal lines for mobile).
Your school could also give you some resources, (e.g. notes, past exams etc.) so it's definitely worth asking them too.

All the best!