I’d say I missed out on this really cool map making period in gaming history (Wolfenstein, Doom, Quake, Half-life, counter-strike, etc.), but it kinda lived on a little when I was a teenager (countless, painful hours making halo 3 and halo: reach maps using a controller…fun times though). Kids nowadays have it the best though: When I was little we DREAMED of a lego video game and minecraft nails that (lego island and lego island 2 were awesome, but it wasn’t infinite building awesome).
I would definitely get some ideas from the Internet, but verify them with a vet afterwards. If you feel like your current vets advice isn’t working don’t be afraid to get a second opinion from a different vet (it’s what I would do with a human doctor as well).