Davinci keeps crashing too much

Constantly crashing

I have 64gb of Ram, and an 7900XTX however it constantly crashes. My drivers are updated, My gpu is selected on davinci I’ve already checked. The only thing I could think of is because i’m using the free version? but I doubt that’s the case it immediately sucks up the pc and causes it to crash once it overloads before I even try to render or export anything. When Ido eventually get to the point of exporting, anything over 1080p causes it to crash. What do I do?