You don't have an untraditional stutter, you have a more severe one with a greater fear of showing stuttering which results in very strong blocks. The main difference between you and a "traditional" stutterer is they're more willing to engage the feared sounds than you are (not your fault). The good news is the blocking is within your control. I know it doesn't feel like it, but the only thing making your block is the immense fear of not wanting to stutter and doing anything to make sure any risk gets shut down. If I were you I would prioritize trying to find the best speech therapist you can. One who understands stuttering and has (successful) experience. Finding such a therapist might be the hardest part of all this (but if your blocking is so severe actually letting yourself show disfluencies may be harder). It will be a process. The good news is you're still only 22 and have plenty of time to work on your blocking and get to where you want to be in life. But you need to find someone who actually knows how to help you (again, easier said than done).