Help Me Get A Service Dog

Hi! My name is Sydney, I'm a 17-year-old high school student. After a lifetime of trauma, I finally got diagnosed by a licenced psychiatrist in December of 2018. They diagnosed me with: Clinical Depression, Generalized Anxiety Disorder, Social Anxiety Disorder, and trauma symptoms. Even though I have been on medication for my anxiety and depression for over a year, I still have issues with day-to-day life. This is where this GoFundMe comes in. My family doesn't have a ton of money, and because of my mental health, I'm not able to have a normal job. This is why I am here. I have done countless hours of research and know whole-heartedly that a service dog is what will be best for me. I am currently working on getting letters from my medical doctors (my psychiatrist, therapist, and general practitioner) to say that a service animal is what I need for my health. This is a long process and probably won't have the dog fully train for another year or two after I have adopted it.

Personal requirements of the dog:
-Has to be spayed
-A rescue animal
-Mixed breed (this lowers the possibility of inbred illnesses of purebred dogs)
-Calm and well tempered
-Under 30LBS
-Low to no shedding
-Medium energy
-Good with other dogs, cats, strangers, and any other animal
-Not skittish or shy
(If at any time, the dog changes from these requirements after I have adopted it, I will make sure they will go to a loving home that can care for them.)

Here's the cost of things:
-The max amount that I'm willing to pay upfront for a dog is $450. This will include all initial vet bills from the rescue agency I will get said dog from.
-After I adopt the dog, there will be a vet check-up that I will do, that could be anywhere between $100-$500 depending on what the vet charges, and what their rate is.
-There is also a fee for getting the dog identified, with what I am looking at, it is about $30-$80 for a vest/harness and another $20-$30 for extras, such as a dog tag/collar and a "DO NOT TO PET" patch. This does not include shipping.
-Any leftover money will help with the cost of training, food (it is a high-quality diet), beds, etc.

What the dog will do for me:
-Help through and after anxiety attacks
-Alert people if I have overdosed on a drug (this has happened in the past)
-Alert people if I have tried to commit suicide (this has happened in the past)
-Help me with my chronic pain
-Alert myself if I have put myself in danger (part of my trauma symptoms is dissociation and I have almost been hit by cars because of it)
-Help alleviate some of my anxiety in situations that could be triggers for me

Thank you for taking the time for reading this, and have a nice day.

-Sydney