Razer Blade Stealth (2016) Issues

I've had a number of issues over the years. I've sent a few tickets before in the past but never proceeded since it would mean I had to return the laptop for inspection and didn't have a substitute for Uni. Some of my main problems I have encountered are:

• a black smudge is visible when the screen is in a white background
• trackpad occasionally not working.All drivers and windows are updated to newest version. The only temporary fix I have is reinstalling the I2C HID driver before the problem manifests by itself again.
• continuous LOUD whirring of fans when the heat sink has already been cleaned out. For obvious reasons I don't take it into the library anymore.
• cracked line across the screen that appeared from nowhere, rendering half the touchscreen unusable
• text from some applications are fuzzy

Can anyone help me diagnose some of these issues? Picture of black smudge: https://imgur.com/a/jWl2tqB Picture of Fuzzy Text: https://imgur.com/a/Uif4wuw