Below, you'll see any text that was highlighted with comments from the reviewer.
the first thing i liked is the message-- now, i know this is as unoriginal as it can get, but here's a sincere thank you from my side for what you're saying in this poem. you make it seem so natural-- that thinking of yourself as less isn't a flaw, but rather something that can be worked upon. a lot of pieces that try to address this issue go wrong here-- they reprimand you and it seems very forceful, but here you've laid it out as gently as possible, which goes rather well with what you're trying to convey. what i also like are your comparisons. i've already pointed them out but i feel like 'misspelled words' is such a unique, thoughtful line; it places emphasis on that particular experience of feeling out of place very well, i can't think of any other word combination that could have conveyed it better.
in terms of the subject-matter, i think you've covering it all, but i feel that you could go a little more in-depth on the kitsungi. i, for one, had to google what it meant, so it's quite possible that others would have to do it too-- it forms an integral part of this poem, and it is mentioned very briefly, so maybe add a couple of lines over there? also, you haven't used a period while ending any of the stanzas except the last one. was this an intentional stylistic choice to show continuity?
overall, i quite like this poem. the whole concept of 'kintsugi' fits well with it, and it provides almost a fresh perspective, as a kintsugi isn't viewed as broken or hampered. well done!