Of course there is hope for you. You are 21, bright, and sensitive. You have been doing therapeutic work and you say you have made progress. Although I don’t blame you a bit for not wanting to have to tell your story to yet another new person, it’s not starting over. It’s continuing a process that’s been going on for a long time.
One way to make the transition be less stressful is to ask your therapist to recommend a replacement and see if you can both meet with the new therapist for a session or two to help you transfer. If that isn’t possible, ask your therapist to spend a session working with you to write a summary of the work you’ve done, what has been effective and what hasn’t, and what your hopes are for the next stage of therapy. This will help you think about progress you have made and will jump-start your next chapter of treatment.
One of the many challenges of depression is how self-involved it can make a person become. I hope your life goals include some activities that help others. Doing random (and not so random) acts of kindness is a great antidote to depression. If you aren’t doing so already, please do give it a try for a few weeks to see if it helps.
I wish you well.