Make sure when you practice you have a clear goal in mind. Noodling around is fun, but it won’t get you anywhere and can often reinforce poor habits. As you progress you’ll learn to identify which skills/techniques you need to work on, and make sure each session focuses on at least one.
Learn your scales and modes, especially if you want to improvise.
Always stretch your wrists and fingers before and after playing
Also make sure to wipe your guitar down with a soft cloth after each play session. You’d be amazed how much sweat and dead skin will get caked into your fingerboard. If you’re noticing it’s a bit gunked up already, take a razorblade and gently scrape it from the wood.
On that note, get a proper set-up done by a professional if this guitar has been in storage for a while. They’ll make sure the neck is set properly, clean up your frets, and any other necessary adjustments. Most guitar shops have a tech on staff who can do this for you at a reasonable price.
If you’re going to learn bass as well, I salute you! I am also a guitarist/bassist. Do not allow yourself to fall into the trap that a Bass is just a “guitar with 4 strings” though. They require very different techniques to play well. That said, those techniques do complement each other. Muting is a good example of this, if you can mute well on a bass then you’ll be world-class at it on guitar.
I could write a ton more, but I don’t want to overwhelm.