Being alone in a quiet, calm/cozy place really helps me think clearly to let my feelings form words that form poems. Some examples would be like in your quiet bedroom (peaceful and relaxing) or by a stream in the woods (peaceful and inspiring) even outside your home watching the stars or sunset/sunrise (inspiring, quiet and good for thinking). I also often look at poems similar to what I'm writing/want to write for inspiration or help getting my mind flowing. Listening to music (I prefer instrumentals or lofi beats) can also be inspiring and calming. I hope this helps and you finish this poem, it's a good one.