(A BIT LONG, WROTE THIS WHILE HAVING A SAD MOMENT BUT ANY ADVICE WOULD STILL BE APPRECIATED :)) )

Hello, so this is my second post and everyone seems really helpful and honest on here, thought I'd be worth a shot to ask for some advice. 

So, in essence, I have finally gone to the GP for anxiety recently and the GP has said that they would agree w it but won't diagnose me yet. We agreed I will also refer myself to the local services.

I think I am definetly a very anxious person in my day-to-day life, but I am not sure if my symptoms are all just anxiety or something else I should be looking into. I have been in therapy/counselling for the past 8/9ish years, and they have all refused to let me know what they think I might be struggling with. The only one who told me his professional opinion was a private therapist I was paying for last year, and he mentioned PTSD/CPTSD.

Ive looked into it a bit, but I've come out more confused as I've noticed a lot of symptoms tend to overlap with everything, and it just drives me insane not knowing "why" or "what" is causing me to be the way I am.  

Some symptoms I've struggled with which I'm not sure if they can all be explained by just anxiety:

I noticed I'm as paranoid as I am anxious, I went through different phases of being paranoid of different things. Some major ones that really stuck with me (some still do) :

●I have always had this weirdly strong belief that my mother is always on the verge of offing herself, and it's up to me to do or achieve certain things to prevent her from having a breakdown and ending it all (because I failed to do something). I think this one might be more as a result of having found her after she "accidentally" OD'd as a child. But it's something that has cemented itself in my head and I can't bring myself to test the validity of that theory.
●once I went through this phase of struggling to eat the food my mum would make, out of this fear I had that she was secretly planning to poison all of us 😅 
●feeling like I'm always being watched/tailed/everyone's in on something and I'm purposely not etc
●feeling like I'm going to get killed (the who changes periodically)
●constantly having to double check things, ie I would put something in my bag, zip it up myself and still need to check it's in there. Even though I'm the one that put it in there!!
●Intrusive thoughts..just..yea

Do these count as delusions? Paranoia? Just Intrusive thoughts? Just anxiety? I know chasing for straight answers isn't Really helpful, but I feel like I need to know the root to treat the cause yk? 

I have no idea how anyone Is able to get diagnosed or even correctly. How do you know where to start with and with what? 

I feel so passive in my own struggles and treatments, even though I've been receiving help and getting referred, it's never gone anywhere. I've changed as a person, I've gotten better but overall it only feels like a little bit. Things are still not enjoyable, being outside, especially by myself, is extremely uncomfortable and makes it hard to enjoy or do basic things.

I'm getting off track, but in essence, the advice I wanted based on what I shared was wether you guys think it's worth it to look into other things, or if anxiety fits better with some of the things I've explained? If not, how do you go about bringing up alternatives and to who and where? How do you get things to lead to something instead of going nowhere? 

I'm not sure if this post violates rules, but I understand if it gets taken down in case it has! Might take this down myself If I come back to it tomorrow and it really doesn't make sense lol