Hey peter, welcome to basnotes.
I'm 20 as well, so maybe we'll have similar preferences. I think you'll like Gucci Envy, especially for wearing out on the weekends. It isn't light, it's spicy, woody, and smells awesome. I think you'll like orientals in general, since you seem to be not like Fresh scents as much. I think you should also try out Dior Homme. It's a bit floral and sweet, but I like this scent a lot. I just wore it for a week straight last week. If I were to pick a signature scent, I would probalby choose that at the moment. Good luck on your decision, and remember to try out the scents before you buy! Hope you have a good basenotes experience!