The DSM is not based in any hard science and if you’re diagnosed or prescribed anything don’t rely on these coming from a place of expertise. These are often mostly subjective judgements, and just be aware:
Psychiatric diagnoses all use different decision-making rules
There is a huge amount of overlap in symptoms between diagnoses
Almost all diagnoses mask the role of trauma and adverse events
Diagnoses tell us little about the individual patient and what treatment they need
If you don’t feel what you’re being told by a professional matches your experience or that what you’ve been prescribed isn’t helping, you’re probably right.
I’ll also add that IMO (and this isn’t coming from someone with no experience looking down on anyone who gets mental health services, I was messed up for years after my second time through 3 years of cancer treatment) medication is best used to get you to a place where you can start adopting a new thought process and strategies to deal with your issues without medication. Most of these meds have extremely negative long term side effects either physically or mentally.
Again not saying don’t seek services, just saying you may be treated less as a person and more as another case for that professional to deal with.