You can absolutely work on reducing your stuttering, using fluency techniques if you need to, or masking it if you can. The problem is that stuttering is a neurological disorder—so you'll never be completely fluent—and it's exacerbated by anxiety. This means that the fear of stuttering can make these techniques, your secondary behaviors, or your masking less effective, or even counterproductive. Accepting your stutter doesn't mean you shouldn't work on it and make it more comfortable for you, but it also means avoiding the stress of stuttering or showing it. This will also lead you to use fewer secondary behaviors (tapping your foot, using support words, repeating entire sentences, forcing through a block...), which will also help make your stutter less visible and more manageable, even though it will still be there.