Yes to both of your questions. Cut out the fruit because it is too high in sugar and offer veggies instead, fruit once in a while is ok but veggies on a consistent basis are better. An all seed diet is nutritionally incomplete and can be fattening, especially for a bird that does not get exercise outside of the cage. It can be very difficult to convert to pellets and must be done carefully, what type of pellets are you offering? Is her cage in an area that would be safe if she were to come out? How long have you had her?