Hola, Hermes88
You have at least a few weeks growmie.
You are going to want to see all of those white hairs change color. Sometimes orange, red or brownish.
Then you'll need a magnifying glass, jeweler loop or enlarge a picture with you phone to check the trichomes.
This website has great information!!
https://www.royalqueenseeds.com/us/blog-knowing-the-time-is-right-to-harvest-your-cannabis-plant-n84