waiting time

been waiting for assessment for months on nhs finally got letter to say they can offer me a video assessment and i thought at last.  ive struggled all my life and thought finally im  nearly there.  but they say yes no prob but it will be at least another 12 months wait.  i feel like whats the point im struggling so much and been waiting so long but to be told at least another 12 months has made me think theres no help with this.