Sculpt Mode Brushes Not working (Except Smooth Brush)

Blender V.2.79

When I go into sculpt mode no brushes do anything (strength is maxed out, brush big)

YES, I have enough vertices. I even made a sphere with several thousand.

What’s weird is the smooth brush is the only one that works still, but ONLY if I’m holding shift to use it. If I select it through the menu and click it won’t work.

About a few days prior I unexpectedly couldn’t rotate in sculpt mode anymore.
(I personally set rotate view to spacebar) and it still worked in other modes (edit, object etc.)

It just wouldn’t work anymore in sculpt mode.

It’s like sculpt mode is falling to pieces and I don’t know what to do anymore.

uninstalling / reinstalling doesn’t help.

I quit using blender because of this and it’s been almost a month. I still want to use the program. I love blender.

bump. ):
Does no one know anything I can do?

I can’t use Blender anymore

Check your brush curve.