Hi Andi (
@Yutahji), welcome back to the forum.
I re-read your introduction post. Is your current doctor a trauma specialist, and do they know your full history? You might be bi-polar, you might not; but what really sticks out to me in your post is that you do not feel like you are being heard by your doctor regarding your history of abuse.
You wrote about Cindy, your cat, and your Shiba, and your lizards. You wrote about wanting to be a vet. I know it took massive courage to post here about what is happening to you right now. Remember that the suffering is the illness; it is not who you are.
You must be at a very low point if you are taking your anger out on your dog. So it's important that you find a solution to get your treatment back on track.
If your current therapist is not someone who works with trauma, I think you need to search for someone who is. PM me if you want help with that.
Don't get fixated on whether or not you have a bi-polar diagnosis. You are in crisis regardless. Something you can say to your current doctor: "It is hard for me that you do not validate my abuse history. I think I have problems in my daily life stemming from that and need real help with those problems. Are you willing to work with me on those?" Write it down on a card if you need to.
Don't take it out on your dog. You don't want to be doing that. Remember, she hasn't done anything to hurt you. The very next time you feel an impulse to lash out, walk away and count backwards from 100 with a big breath in-between each number. Don't go back to the dog until you are calm again.
If caring for a dog is too much pressure, you should give her to a friend to keep or give her to the shelter.
Thinking of you. You've survived a lot; you can survive this, and you can heal. You need trauma therapy with a doctor you can trust. If your thoughts of suicide persist, given your history, I would strongly, strongly suggest you go to the hospital.
I mean all of this with compassion: I hope it has helped in some way.