Ahhh, i hate that shit with a passion lol I have tonsss of poems that I began writing a long time ago and CAN’T finish..or at least cant finish as strongly as I feel I could. One thing I recommend, is music. Usually, when im writing something, I have a specific song that fits the mood of my poem on repeat. Sit there for as long as you comfortably can and try adding things, doesnt have to be in order, doesnt have to rhyme with the last thing you wrote, could be for a different part of whatever you’re writing, just write relevant stuff, and who knows, you could possibly end up writing something completely different..and amazing. Its happened to me before. Buttt, dont sit there too long, put it away once you start feeling frustrated, ideally before that point. Then forget about it. Then, whether a day, two, a week or a month later, look at it again, and play the song to get you back in that mood, and go for it again. I also read other poems of mine in between to give me ideas and remind me that i CAN finish and that when I do, the result is fucking amazing lol Or read someone else’s work. Brainstorm, again, jot down relevant stuff, find some inspiration. Dont focus so much on finishing, that makes you rush and half ass your writing, rather think of it as adding things and making what you already have stronger..when its time to end it, you’ll know. You’ll get it.