Welcome to the forum. There's nothing wrong with being a newbie! Being new is part of the fun of this hobby. Seems like you're embracing it and that's a good thing. It'll make it easier for you to learn as you go along.
One thing you'll want to do right away is make sure you are not burying the rhizome of your Anubias. Sticking the roots into the substrate is fine but the rhizome should be above it.
Just about any sort of Crypt you can think of would work for your tank. Crypt parva is a nice, small plant that would look almost like a carpet if planted thick enough.
The plants you have will do really well with root tabs so that may be something to consider. Much easier than dosing ferts. Always good to have something like Flourish on-hand, though, in case you need it.