Start with Robotics

What you need to do Robotics:

Lego education Spike Prime Robotics Set. And expansions set. (Optional)

You can buy the Spike set at HANDS ON TECH

https://www.handsontech.co.za/

Or EV3 robotics Set. Even though production of EV3s were discontinued, you can still use them for Robotics Competitions.

Laptop for coding.

Electricity. 

Robot run Tables.

Robotics coach.