So, after fiddling around with my VGUI files for a mod, like gameui_english.txt and NewGameDialog.res, trying to get rid of the training room button from a previous tutorial, I realized I was without a HUD. Then after that, I realize the gameui_english.txt I had edited was in Half-Life/valve/resources instead of my mod's directory.
I tried reinstalling the two files I edited, I tried reinstalling my resources folder, I tried reinstalling my Half-Life/valve folder, I even tried reinstalling all of my Half-Life games hoping that it would work, but nope. Even though the files have been set back to their normal state, I still cannot see my HEV hud. It's really ticking me off because I can't think of any other possible solutions that I can do.
If you have a solution to this problem, please tell me asap.