Banks will refuse you credit if your score is below 700 points. However, lenders may still offer you credit with lower scores.
Your score should give you an idea of whether you will succeed or not. Personal loans are only secured by individuals who are beyond 640 points, so if your credit score is less than the required point, completely avoid asking for a personal loan in such circumstances.
It may be a good idea to focus your energies on seeking bad credit personal loans or even no credit check personal loans Australia. Most of which you can find online.
You can also find out if your lender reports payments to the credit rating agencies; if they do it will go a long way in assisting you to increase your credit score. However, you will have to repay your loan regularly and timely.