I would like to train my own service dog, but cannot find a dog that I get along well with due to a few things. What do you suggest?

Hi, my name is Michelle. I have a kind of complicated question to ask but I don't have anywhere else to turn to. I've been searching and went through a lot of different dogs trying to find the right dog to be a service dog for me because I have anxiety, depression, social phobia and I black out. For some odd reason most dogs I go around seem to perceive what I have as threatening. So my boyfriend saw this add online for a litter of rescued bottle feed 3 week old puppies and thought maybe me raising one would help the dog and me to connect better and the dog to not see what I have so aggressively. I don't know what to do I need help finding the right dog. I've had a lot of heart ache and my family is getting sick of the different dogs. I've tried organizations and none will help me especially since I have hardly any money. I have trained service dogs for other people and they came out just fine. Was is a golden for an eight year old boy that has grandmal seizures and the other was a pit that is with a guy that has epilepsy. I just can't seem to find the right match for me. I'm always getting the wrong dog, please help??? Oh and my boyfriend also wanted to try a rottie but I wanted your option on this.