Back when I went to heating and cooling school to get my certification to become a heating and air conditioner specialist, I can tell you that it was not another simple task.
Having to show up for classes every single weeknight of the week was strenuous as it was because I worked a job during the afternoon and then went to the heating and air conditioner classes at night.
The other thing that was strenuous was paying attention because I would be so tired from working all afternoon. But I was entirely determined and dedicated to getting my heating and air conditioner certification so I could actually become a certified heating and air conditioner specialist and either toil for myself as an independent heat and air conditioner worker or go to toil for one of our various local heating and air conditioner companies here in the local section in which I live in. However, by some miracle I made it through heating and air conditioner school the first time and graduated with honors. I still do not know how I pulled this off, although I did. And I ended up going to toil for one of the best and most top heating and air conditioner companies in the area! Today I am still there and it has been almost 30 years since I have been working here. And I am totally cheerful with my work and job as a heating and air conditioner specialist with the local heat and air conditioner corporation.