Just Can't

I feel like I just can't do anything anymore.  I'll have the drive to do something for such a short while and before I can even do it I'll lose the drive and feel like a failure.  I'm afraid to start any endevor because I don't usually finish what I start, then again I feel like a failure.  I can't even bring myself to write goals on here because I'll just stop coming here to avoid them and I really need some support.  My friends and family are wonderful people but they just don't get it and I'm not entirely sure I want them to.  I don't do simple things like clean when I'm depressed and then once I'm pulling back up there's so much to do it's overwhelming and I get depressed again.  I haven't been able to fully pull myself out of depression for months now and I don't know what to do.  I upped my meds and it didn't really help.  I'm not willing to up them anymore, I didn't want to go on them in the first place.  I have big issues with that.  I know that if I could eat right and exercise it would really help my depression and it just makes it even worse that I can't bring myself to do it.  I'm absolutely disgusted with myself and it just gets worse and worse every day.