Tips for IELTS speaking (general)

Hi guys! I'm new to the group and I want to ask everyone out there to give me some advices on how to improve my IELTS Speaking skill in a matter of few weeks. I'm currently sitting at 5.5 Band for Speaking and I need to get at least 6.0 for my plans. I have retaken the test multiple times and never improved my scored, so it's been very frustrating. I'm in Canada and the examiners seem to be very strict on handing out 6.0, compared to my home country's ones.