Why my refund decrease when I add expenses?

I do ubereats, doordash, and few others and also amazon.  turbo put all the food income under "food delivery" and Amazon as "delivery driver".  I also have a photo work that I no longer do do I just delete this?  When I try to enter example gas or mileage on to one of those my refund goes down but if I don't enter any expenses my federal and state refund goes up.  help please what should I do.