first bottle?

ok. im responsible and scared of alcohol so i’ve never drank anything (but fireball for a sore throat when i was like 8 bc my mom) before what’s the best bottle of alcohol to get for your first time drinking? i will be turning 21 next week and need to prepare. i live and az and might smoke too but i don’t know if that would make it worse since alcohol is completely uncharted for me, thank you! ps i work at 10am the next day but i can call out if a hangover is like unavoidable but im naïve asf…