I'm primarily trying to learn Lua for use with the Love2D framework and would like some advice on how to actually learn to do stuff with it and (at least partially) memorize knowledge about the language.
Thanks in advance.
Yeah, that's what I've been doing with HTML.The boring answer: practice practice practice.
Follow tutorials and practice. I know nothing about Lua, but it's true for any programming language.
Once you've followed a few tutorials and get a feel of it, try to make small tasks for yourself to solve.
Always start by writing what you want to do, then more in detail what you need to do that thing. Then look up what programming stuff you need for each part. Then try putting it together.