I think early on, it’s really important to focus on getting comfortable with the instrument itself. When you start learning to play, it’s common to have a lot of stiffness in your wrist and fingers. It’s kinda foreign for your wrist and hands to move like that at first. Practicing frequently and developing your muscle memory will help get your hands to flow on the instrument.

It’s less important when you start, to focus on getting the notes and patterns right. When most people start learning, they sound like shit. It can feel discouraging when you do all this practice and you still don’t sound like your favorite band. I think that’s where a lot of people end up quitting. And it’s why that guy at every party knows how to play Wonderwall and nothing else.

Practice getting a good feel for the instrument. It’s a good indication you’ve become fairly comfortable when you realize you’re not looking at your strumming hand anymore as you play. The more comfortable you get, the easier things like the strumming patterns will get too.

Don’t be afraid to play something a little differently if it’s easier for you to learn. You can use it as a stepping stone to learning the original. Or you can just play your own version.

As far as resources go, I mostly have used YouTube and Ultimate Guitar. I think you’ll find that a lot of guitarists don’t use sheet music much. The most common form of written music for guitar is written in Tab, so familiarize yourself with that if you aren’t already. I have always learned by looking up tabs on a song I wanted to play. You can always look for something else if you are more comfortable with that. But I think it’s always easiest to get started on a song with some community-made tabs.

Keep practicing, don’t give up. You will get better.