The title pretty much gives a huge hint on what I'm going to talk about here.

Long story short, I'm depressed.
My family's all torn up just because of my mom and her stupid decisions and I get treated like I shouldn't be alive right now. I always feel like nobody cares about me and I'm not important which I, to be honest, know that's not true but it feels like it because I'm always the one that gets pushed away if I'm telling anyone my problems. It's like they don't even want to be around me, like they're only their for my smiles and crappy jokes.
Although I do have a great best friend and a great lover but I feel like I do no good to them and that I don't deserve them at all because there's someone better out there for them.
I just see no meaning in life anymore.
I've tried killing myself a lot of times before; this all began when I was in the 4th grade and here I am still 5 years later.
I just don't get why I have to be treated and have to feel like this all the time.
Everyone's lives would be so much better without me because I'm the one who always bring down their day.
I'm a walking and breathing embodiment of depression and I just don't want to deal with life anymore.

When you're walking through hell, keep walking.

Just keep moving on. Remember bad things comes with good things too. Don't Lose Hope. You Never Know What Tomorrow May Bring. Hope this helps

Don't give up.
and, this is very important: Express. Express what you feel.
It doesn't matter how. Write it down. Talk about it. Talk about it when your home alone. Speek the words, let them out, it doesn't even matter if you just talk to yourself, write down your fears, write down your sorrows, give them a place, and let them out. don't judge them. Just let them be the way they are. Find a place where you are completly alone (this is gonna be hard if you live in a city, though) and just scream to the sky. Post your feelings on this site, if you want. Find other groups for support on the internet, there are plenty of them.
listen to music. sing allong with music. Dance, move, run. It doesn't matter. you need to focus the negative energy into something else, so you won't be overwelmed and taken over by them. Give your feelings the right to exist, give them the right to be, because otherwise you won't able to let them go.
If possible, talk to someone about this. You can also try to go to a terapist. find people with the same problems as you, and help each other.

make sure you won't suffocate in your own feeling, and make sure you don't isolate yourself.

hang in there. you can do this. it WILL end. it will. one day, you feel better.
give yourself the right to live, so you can experience that
you are worth it. Because you are. And you can do this. Don't lose hope.

I agree with every bod just look at the good things about life your focusing on the bad things and your friend and lover like to be wi th you because of who you are so ask them for help and let it all out because after that it'll help and ask them for help hope this helps

Hold on to hope, and be strong. As the others have said, find a positive way to let out your emotions. Don't keep it all inside, that will only make things worse. Let out your emotions, and remember that people do care about you.
I see the Dollars as a family, since it has become almost like an online home to me. This website has so many caring people who are willing to help you. So many people who want to make a difference in the world or in someone's life. And there are people here who will listen to you and help you.
So if you want, as >>4 said, write about how you feel here. We want to help.
Be strong, have hope, and hold on. It may seem like it never will, but depression will stop. It will stop and the world will seem even better than it was before. You will be okay.
And remember, the world isn't as bad as it seems.