Oh boy Vannessa!!! I feel very badly for you!
Don't listen to them whatever you do! There is not "nothing they can do for you" if zoloft and seroquel don't work out. Come on, that is a load of crap! Do you know how many meds there are out there? Here I will name all of them that I can think of right now for you!
Mood stabilizers: lamictal, lithium, tegretol, trileptol, depakote, topamax
Antipsychotics: abilify, geodon, seroquel, risperidol, haldol, invega, zyprexa, symbyax
Antidepressants: Lexapro, celexa, cymbalta, effexor, effexor xr, wellbutrin, wellbutrin sr, wellbutrin xl, zoloft, prozac, trazodone, elavil (not to mention the many tyricilics or MAOI's that I haven't even mentioned!!!)
AND I'm sure I've left many meds out of that list! But also, just imagine the hundreds of combos of those meds that you could try. For example, maybe seroquel won't work for you, but maybe seroquel and lamictal will work wonders! So just march up to your doctor and demand better care! Or better yet, can you see a different, more compassionate doctor? There are many options for you here hun, so don't dismay!
BTW, sorry for rambling...it just made me so mad to read what your doc said to you!!!!