I am trying to create a function that will return the verbiage of Over 30, Over 60 or Over 90 depending on a particular column. I have the individual functions down but ever time I go to nest it returns True instead of the verbiage…what am I doing wrong?

Here is the formula:

IF(AND({Days Since Sent} > 30, {Days Since Sent} < 60, “Over 30”,0),IF(AND({Days Since Sent} > 60, {Days Since Sent} < 90, “Over 60”,0),IF({Days Since Sent} > 90, “Over 90”,0)))