So while using Youtube or other sites my display randomly crashes, glitches out, and comes back. This has been happening a lot and its starting to get annonying. Like really annoying. Dose somebody know how to fix this (if it involves buying something from the internet/store, thats not an option for me)?

So while using Youtube or other sites my display randomly crashes, glitches out, and comes back. This has been happening a lot and its starting to get annonying. Like really annoying. Dose somebody know how to fix this (if it involves buying something from the internet/store, thats not an option for me)?