Ok I need a bit of help lol

I am a 16 year old from the UK wanting to learn how to invest in stocks. I'm not sure if I can start at 16 or 18 but either way I would like to have a clear understanding of the topic.

So far, I've seen some videos by Mark Tilbury (which I'm taking with a grain of salt), I've spoken to a relative who seems to know a decent amount, and I have a job which will leave me with a good amount of money when I'm 18.

I would greatly appreciate any sort of guidance, for example a good book for beginners or another direction to move in.

Thanks in advance 🙂