At the moment I’m struggling to understand what I’ve done wrong / how the answers are different. I’ve looked over the hiragana chart and from my (very small knowledge) understanding, the hiragana for this should be “mi + tsu” but there seems to be an additional “tsu” there. When attempting to add this myself, I’m getting an error.
I please with you, those that have ascended past the first step, help me see what I’ve done wrong.
Thanks very much for your time,
I super appreciate it.
Also, another tricky one you will run into is づ when you run into the word “Handmade” 手作り（てづくり） in level 7. If you don’t mind me nipping this one in the bud beforehand…
Either that, or if you want to put just small kana you put ‘x’ in the beginning, for example if you wanna write small よ then you write ‘xyo’ → ょ, small つ “xtu” (actually my ime handles ‘xtu’ and ‘xtsu’ as well but WK seems to only recognize ‘xtu’).
Usually you write things just phonetically (みょ “myou”, った “tta”) but sometimes you have to write just the small kana.
I was about to type this, but then I saw you were replying and figured this was the only missing tip for this typing tutorial.
This “X before anything” trick is very useful if you’re practicing writing outside of WaniKani and want to use a borrowed word (外来語). You can make all the small characters you want in hiragana and katakana!
xあ xい xう xえ xお = ぁ ぃ ぅ ぇ ぉ
that’s my bad.
Eventually you begin to wonder how could ever mistake them
avoided 
)