The speaker is exhausted and isolated, and the last line suggests they may be thinking about ending their life. The poem is only four short lines, written in lowercase without apostrophes, which makes it feel like a raw private message rather than something polished.
The first line shows fear of a relapse: "again" implies things have gone badly before, and the speaker dreads a repeat. The second line explains why they stay silent. Everyone close to them is "involved," so telling one person would hurt the others. That leaves them alone with the problem, protecting people at their own expense. By the third line they are simply worn out ("i just dont wanna do this anymore"). Then "maybe tonight is the night" lands flatly, with no drama, which makes it more chilling.
The mood is quiet, tired, and desperate. If a poem like this feels close to your own life, please talk to someone you trust or a local crisis line.