As Babar already answered, you can:
- Start with the Dynatrace documentation here: https://www.dynatrace.com/support/help/get-started
- Visit the Dynatrace University here: https://university.dynatrace.com/elearning/getting...
- Watch our Performance Clinics; I recommend the one about getting started with Dynatrace: What is Dynatrace and how to get started
- Ask or search for answers in the forums!