Friends, I hold 8 MS certifications. These tips are based on my own experience. Microsoft certification exam is tough so include your learning with practical.

Microsoft learn is the best place to start learning using the learning path provided for each certification.

https://learn.microsoft.com/en-us/

You can search the learning modules by level, types and roles.

Complete the learning path diligently and earn the points. Trial license of the product will help you with practicals.

Register for Microsoft Virtual Training days. You get to learn along with the lab sessions. 

https://www.microsoft.com/en-us/trainingdays

Microsoft Virtual Training Days

GO through the upcoming online sessions. Register and you can download the outlook reminder after registration confirmation.

you may get discount on exam after attending the session.

Microsoft's Enterprise Skills Initiative is a collaboration between the organizations and Microsoft to get the employees MS certified. You get to learn as well as take mock tests. Check with your organization if it is available.

Register for trial license of Microsoft products in which you need to be certified. Follow the learning path along with practical using the trial license of the product.

Book the certification exam in advance and test your machine that everything is working fine. You have options to appear in MS certification exam from home and an exam centre.

Search for the particular certification and follow the steps to book the exam schedule. Wish you all the best.