Honestly, I am one of those people, and sit in front of a PC all day everyday, and I feel as if my health is going down every single day because of it. It's fine though, I do not think that I will continue to do this forever, I am going to probably do something else. I get that it may not be all that insane to deal with this right now, because while having a financially depressing period, taking care of your health, even mentally, is not that easy.
If you are the type who stay on the PC daily then you have to use blue light filtering glass, it will be able to help you reduce the effect of the harm to your eyes because eyes is also important if we want to keep a healthy lifestyle. You need your eyes to be able to function very well. The earlier you maintain it, the better.
You can also your screen settings of the PC.