cPanel server management tips?

hey everyone, just launched my very first SaaS app and it's exciting but also a bit scary on the technical side.

i'm trying to get a handle on all the website maintenance and cPanel stuff. honestly, it's a lot! i'm worried about mising something important or accidentally breaking things, especially when it comes to keeping the site up and running smoothly.

for someone completely new to proper server management, what are the absolute must-do's? are there any super common pitfalls i should watch out for? just looking for some basic, practical tips to ensure good performance and security without getting too deep into the weeds just yet.

really appreciate any help or pointers from the pros here!