If you want to not be behind a screen, what you’re looking for might not be mechanical engineering at all. The guys/girls on the floor of a shop full of CNC machines and 3d printers aren’t usually engineers as such. Manufacturing/fabrication is obviously a whole different universe than the typical HNer inhabits, and has a very different culture- but it can be very high-skill while usually a having lower formal training requirement. (Perhaps even can be a useful stopover before beginning studies to go back behind the computer screen as a MechE.)