Stuttering is a neurological disability where the brain does not correctly process the speaker's voice as s/he speaks. You have a physical disability. No reason to not like yourself or hate yourself due to your stuttering physical (neurological) disability. Would you hate yourself if you had a chemical imbalance? Would you hate yourself if you had Autism/ADHD/Down's Syndrome/Schizophrenia/etc? Much better to appreciate how far you have progressed in spite of your handicap. Standard stuttering therapy often does not work. Maybe there are some newer therapies that can help. Check it out.