How to start trading?

Hi guys, i just wanna ask that how to get into a bit of trading. I'm just a uni freshie so it's not like I'm in rush or something but I feel like that in my free time, i should learn a bit about trading so it's not super tough for me in future! Any kind of roadmaps or course recommendations are welcome! PS : I know no theory or roadmaps are valid enough to get in a practical field like this but I just want anything to get started with if it makes sense :)