Practice tests for AWS AI Practitioner

I'm kinda looking for resources to get some practice tests for AIF-C01. I am done with Maareks tests on Udemy.

Want to have some more tests before diving in. Does Amazon provide a free/mock test or something or is there something more on Udemy that I can look out for to get some more practice. I have been averaging around 80% in the tests so far and feel a bit nervous.