Considering a Service Dog for My Mental Health

Should I look into getting a service dog? I have diagnosed PTSD, major depression, anxiety, ADHD, and BPD traits. Sometimes I get so depressed I can't get out of bed to do basic things like take care of myself or eat as well as having self harming thoughts. I also indulge in minor self harming habits without realizing it (picking at my lips until they bleed mostly). I also have extreme panic attacks where my heart races and pounds, I either feel like throwing up or actually do throw up, shaking all over, dissociating, intense leg bouncing, feeling dizzy or like I might pass out (haven't ever passed out) and feeling like I can't breathe properly feel like a service dog would really benefit me but I also don't know if I super need one.