There's a whole lot of tips and tricks out there.
What angle are you looking for? Filling? Carbonating? Dispensing? Cleaning?
I'd start with researching how to purge your keg and do a closed transfer to fill it. That way, you minimize O2 ingress.
Beyond that, it's all pretty straightforward but there are also a million questions to ask. Once it's up and running, you'll start to figure out what you need to ask and what you don't.