It may just be me. But it seems, I spend more time trying to figure out accoustic treatments, where to to put this, how to position that, and what new stuff I need (but can't afford) than I do recording. Does it get better? Or does the desire for a bigger, better studio, and newer, cooler equipment continue until you are broke? And you still don't get any recording done.
It really comes down to what it is that your goal is in your situation, and the limitations you have.
Just recording some demos, or writing songs? Room treatment and quality gear, probably not so much an issue.
Recording for a worthy product that means something to you, that you wish to share or sell? Well, your experience and education will be more valuable than anything, but room treatment would be the first step after realizing it is necessary. This would be obvious to you, because of your 'experience and education'.
"Does it get better"?; Well yes, every little or big upgrade makes a difference in the end product. Do you ever get over GAS (gear acquisition syndrome)? No, and you never will. But, experience will tell you what is needed.
IMO, if you can't get a 'really good sounding' recording with your basic interface, decent mic, good DAW, and free effects, then you need to work on either the sounds you are recording, or the techniques to get there, before worrying about upgrades.