Remember this - you will have a thousand and one questions when you sit in front of the radio for a while. Some answers will pop into your head easily and other issues will need a reference. That's why I prefer to have a reference library of guides, books, and manuals nearby, so that I can easily research frequency allocations, how to program my particular transceiver, operating techniques, tech info, or etc. ARRL has some quality reference materials - even if they can be pricey. Consider getting them used at clubs, hamfests, estates, etc.
YouTube can be helpful when setting up APRS on a new 2 meter rig for the first time, but sometimes you just want to know how to turn off the offset to go simplex and YouTube isn't easily geared towards that.
If you have a GMRS license or other licenses, get a deskplate or a piece of tape with your amateur call sign in front of you. More than once, I've hopped on and unintentionally broadcast my GMRS call. It can be embarrassing.
I also keep a cup with pens and pencils nearby to write down information.
If something stumps you and it will, ask here. There are a lot of good hams and tech people who can point you to the answer.
Welcome aboard and don't allow the codger hams [there are quite a few, based on bands] to wear you down. Expect to take a break every so often for the fun to remain.