It's fairly simple to replace but there is a lot of glue. I found a BOE model that is 144hz, better color accuracy and much brighter. It is about $150 and ships from China. I installed it 2 days ago. Completely changed the laptop for the better. If you need to model number met me know. 

Yes can you please link the one you purchased.

Thanks.

Hi can you send me the product number too i want to replace my screen too i now only have 60 hz screen 

Thank

Welcome to the Dell Community @Peter lopez 

Dell G Series G3 3590 LCD Screens:

https://www.parts-people.com/index.php?action=category&id=173&subid=1299&refine=lcd+screen

Best regards,

U2