I think for a stutterer situations like starting at a new uni will always cause intense stuttering, atleast for me it has done that several times only to decrease with time. I would not expect speech therapy to cure you so be less hard on yourself, this is not your fault. I have been to speech therapy a few times, but have personally not gained much from it. Instead hold out for the time when you have established some friends, then your stutter will be less of a problem.