If your UCAT score is low, first keep trying again and again to get a higher score, then if it's still low do a medical degree at uni and after apply for medicine. There are a bunch of online zoom lessons that give you more info on that. UTS also have a pre-medicine course, check that out too...
im a little late but do past papers for English there on NESA website trust me they are all the same every year just different concept do them then ask your teacher to review them