I've heard Darktable a lot, and I've actually looked at it before, but it looked intimidating and I did not yet really have any photos I could try to edit, so I continued doing that first.
As for the webcam thing: I have a capture card, and it kinda works, but I'm not too sure on how to get a clean output through the HDMI port.
However, I'll definitely look into those things :D
As for the lens thing: I don't think I'll spend money on new lenses immediately, and if I was, I'd look for cheap used ones. I kinda wanna create art and not necessarily perfection, and also I don't like spending money xd
I think it's about finding character in the gear you have.