Hi,

I also first learned about Lucid Dreaming because my father told me about it. I think I was a bit older than you are now, but not much (maybe 18?).

Anyway, this is what worked for me:
(1) I first read a lot about Lucid Dreaming to figure out which ideas sounded like something I would want to try.
(2) Based on this I started a dream journal to help improve my dream recall, and later to look through my notes about my dreams to familiarize myself with the differences between my dreams and reality.
(3) I started doing regular reality checks, such as for example looking at something written down and looking away and looking back to see if it changed. If it changed it was a dream. There are many other possible reality checks, and you can try different ones to see which make most sense to you. Ultimately what matters is to do them regularly enough so they become a habit, and that you will hopefully do it in your sleep as well.
(4) I started paying more attention in waking life, in the hope that I would pay more attention in my dreams.

Don't stress and don't worry if it does not work right away. Get lots of sleep. and see whether this works for you. If it does not, there are lots of other ways of doing it.

I remember how excited I was the first time it worked, and my lucid dreams were lots of fun - I hope yours will be too.