I went to the psy and their telling me I have ADD symptoms and are depressed to. Her approach is to treat the depression first then the ADD. I'm frustrated sin

I went to the psy and their telling me I have ADD symptoms and are depressed to. Her approach is to treat the depression first then the ADD. I'm frustrated since Is now going to take longer to treat my focus and everything related to the ADD. Any thoughts on this treating depression first than the ADD?