Your computer is below minimum specifications. Also zero detail on the Resolve version you are running and the OS version. Also codecs used, settings etc etc. Impossible to speculate without any relevant information
I'm on Resolve 16.1.2 and I updated to Catalina 10.15.4. These crashes weren't happening on the previous OS...
All my footage is in Prores 422. I wasn't planning on editing a full tv show on my home computer but since the present situation here I am. Pretty sure the issue is that my Macbook is underpowered for this.
Resolve is up to 16.2.1 . I suspect the issue may be based on your computer and OS compatibility. I'm on PC but I haven't seen comments about loud sound for a while. There were problems for some on earlier versions of Resolve