Flash Player won't work, I've run out of solutions?

I use a PC, yesterday YouTube stopped playing videos, the frame would come up and show a picture but just wouldn't play. This morning I tried to play songs on Spotify but they wouldn't play either (presumed related). I've uninstalled/reinstalled Flash Player and Shockwave countless times, and enabled/disabled it countless times in chrome (when enabled, "A plug-in (shockwave flash) isn't responding" comes up on nearly every site). I've installed Firefox and it still doesn't respond, I've tried to disable hardware acceleration but the animation to right click won't show up in the first place. What should I do next?