Boss told me I'm too dumb to get into cybersecurity and to not waste my time

I have been working in construction (AV, Surveillance, networking) on/off with this guy for a couple years. We mostly just pull cables or hang TVs. I recently started getting enrolled in WGU's cybersecurity program. I am 27 and feel like it is time to get into something more "brain" oriented. I can't use my body forever and don't intend to. I have always viewed myself as a smart person but I did poorly in college because of severe depression. I …

body boss brain cables construction cybersecurity cybersecurity program don my body networking program surveillance tvs waste working