One of the main benefits of the Raspberry Pico is it is very quick to get set up.
These videos will quickly get you using the Pico, connecting hardware to Pins using a Breadboard, and using sensor data.
Pico 1.0: Connecting and On-Board LED test
This video explains how to:- connect the pico to the PC
- install MicroPython
- write code to control the on-board LED
Pico 1.2: Adding a LED to the Breadboard
Pico 1.3: Adding Two or more LEDs to the Breadboard
Pico 1.4: using the on-board Temperature sensor