I need to know wot to do!!!! ADHD an other probs!!?

im sick of livin how i do! i need to go the docs cuz im almost 100% sure i have adhd.i know somethin isnt rite anyway. i have got mental health probs as i am bulemic and have been for years now. its out of control. but this isnt the only problem. im an unorganised, messy, selfish, silly wreck. well thats wot it looks like to people. im not rly selfish and stupid tho, i do care about other people but the way i act makes it look like i dont. i have bad anger problems. and i always act first and think later. even my boss has said this about me. iv managed to keep this job longer than 2 months which is good for me as its not a borin job, but my issues r becomin apparant, like unorganisation, and not thinking, concentrating. im scared il lose my job. i lost my boyfriend as he cant cope with me and i have done the most stupid and hurtful things. i really need help, iv bin to docs so many times but antidepressaants dont wrk, and i jus clam up wen i get there, so i feel like i cant explain wots happenin. its guna ruin my whole life if i dont sort this out. i jus want oneday where its not a struggle. i cant carry on anymore. i want to feel normal. wot do i have to do? how long is the process to be tested for ADHD cuz i tick every box for it. i jus want help as quickly as possible. can anyone tell me wot i need to do to make sure i get the best help in the quickest way