I think it's about drugs and his girlfriend. How he doesn't want to use drugs and be a better person while at the same time he doesn't want to be a burden on his girlfriend. "leave it alone, yeah just forget it and I believe I'll forget it too..." he may be saying "I need my space and time to get things right and you'll get over me I know it and I think I'll get over my problem." Also when he says "Drag us both down" he doesn't want to continue to hurt himself or her. I don't think it's a depressing song I think it's a song with a lot hopefulness and for smith, it's a song of realizing what his life has become after years of travelling from coast to coast and abusing drugs and never being able to really settle down. I'm not really sure though but this is what I think when I read the lyrics from another songwriters point of view.
I think it's about drugs and his girlfriend. How he doesn't want to use drugs and be a better person while at the same time he doesn't want to be a burden on his girlfriend. "leave it alone, yeah just forget it and I believe I'll forget it too..." he may be saying "I need my space and time to get things right and you'll get over me I know it and I think I'll get over my problem." Also when he says "Drag us both down" he doesn't want to continue to hurt himself or her. I don't think it's a depressing song I think it's a song with a lot hopefulness and for smith, it's a song of realizing what his life has become after years of travelling from coast to coast and abusing drugs and never being able to really settle down. I'm not really sure though but this is what I think when I read the lyrics from another songwriters point of view.