Small っ and consonant timing
Small っ is not pronounced like full-sized つ. It changes the timing before the next consonant and can distinguish words, so practice both the spelling and the rhythm.
Distinguish つ from っ
きて is the te-form of 来る (come), while きって means postage stamp. Small っ adds a timing unit after き; it does not add a separate tsu syllable.
Practice き・っ・て as three morae. Briefly hold the mouth position for t before releasing into て. Simply saying the word louder than きて does not reliably preserve the distinction.
Follow the next consonant
In がっこう (school), the closure before k is held longer; in ざっし (magazine), the following sh sound is prolonged. Treating small っ as complete silence in every word misses this difference.
Small ッ serves the same role in katakana. Notice it in ベッド (bed) and チケット (ticket), and learn the Japanese timing rather than relying on English spelling or a Korean transcription.
Dictation with meaning
Listen and mark where っ belongs before writing the full word. When checking your answer, inspect the character's size too. In handwriting, make it small enough to distinguish it from full-sized つ.
Once the word is clear, practice it in a sentence. 切手を買います。 can mean 'I buy stamps' or 'I will buy a stamp,' depending on context; Japanese leaves the quantity unstated. Check that きって retains its extra timing inside the sentence.
Check: Should きって be read as きつて?
Show the answer and why
No. Small っ is not a tsu syllable. Extend the timing before the next t and retain the three morae in き・っ・て.