The speaker of "Nothing" is someone with no family or close ties to lean on. They say they have no one to call their own and never really had a home, and then, almost as a shrug, add that they'd rather be alone. That last line sounds tough, but it reads more like armor than honest preference. The word "honestly" feels like someone trying to convince themselves as much as the listener.
The second stanza lets the loneliness show. The speaker writes letters to friends that "probably won't get sent," which suggests reaching out in private without ever quite connecting. Then the questions arrive: "Is it ever gonna end?" and "Will I feel it when I get there?" The speaker doesn't say where "there" is, and that vagueness is part of the effect. The mood is quiet, tired, and uncertain, with a thin thread of hope that something better might exist somewhere ahead.