I've downloiaded 123D and had a quick look. As for discord, its a weird place from my few forays into other discord accounts. I'm not sure I can spend the time at the moment as I'm going through a bunch of stuff with VA and rehab and so have wall to wall appointments it feels like. I'll try and explore it a little and know who to ask questions of. I have been trying to learn Free Cad and have made some things for work and models with Tinkercad, but I find it clunky. I'm amazed at some of the things I have seen from Tinkercad though.
James