Taking AZ-104 on Friday..

I'm taking AZ-104 on Friday and I've studied for about 2 months in depth while also working in Azure every day for my job. I like to think I understand Azure well but every single practice test I've taken this week I've failed. Before I started taking these tests I was 99.99% sure I was going to pass.. but after taking these tests it has completely killed my self esteem in it. Any tips on taking it/ words of advice to ease my brain?

Thank you!!