Feel lost, hopeless, rejected, im suicidal.. this is really my last straw?

I feel hopeless, angry, depressed, self hating, abandoned. I cant even get my doctor to show up. Does ANYONE even care about me? I had an appointment with my psychologist and he doesnt even give me a courtesy call to cancel. My ex doesnt have the decency to STOP stringing me along.. saying crap like "I like you I am just not ready yet." Im not a peice of crap that you can just walk all over. I have feelings TOO. I am so utterly depressed. Its really effecting my life. Ive tried everything. Medicine, meditation, keeping busy, reading. Im getting worse by the minute and I dont know if i can control myself. I dont know what else to do.. Im writing this hoping I can get some sort of advice that will help me.