planning to raise a few weeks old cockatiel soon!

hi! so im planning to adopt a baby cockatiel (first-timer) when my schedule allows me to dote on full-time on a baby cockatiel since i don't wanna get one when i'm still busy.

do you have any pieces of advice that i cannot possibly get from simply watching youtube or searching? i really wanna do my best to keep the baby tiel alive especially it's sensitive in its first weeks :>>

note: i also have a shih tzu dog