Depression and anger

Not that I really expect anyone to read this but I guess that I am hoping it will go towards relieving the problems. I am going through a small stage of depression and anger right now. The anger is well pretty much directed at one person in particular. I mean this is beyond the normal anger that I feel, beyond that frustration at a person or situation. Its more along the lines of pure loathing. Its the actions of that person that are making me feel this way. The depression is from the feeling that people are using me. This isn't a problem that is localized to one or two people, but rather it's a matter of it being everyone but one or two people. I guess that it seems that I am just a means to an end. I really want to help everyone and anyone that I can but thats all that I seem to see of anyone or hear from them. Like a rainstorm, you know it comes rains and then it is gone. I know that I am someone who needs the alone time, but I guess that alot of that is because I honestly feel that people don't want me around. Or in some regard it might also seem like I don't want to see people. Meaning that I do know alot of people and if I were to allot say 3 hours per person per week and include work and school than I have no time at all. Who knows but it does feel good to get it off of the chest at least.