YOU SAID:

your hand is too small but not that small but still small

INTO JAPANESE

あなたの手は小さすぎるが、それほど小さくはないがまだ小さい

BACK INTO ENGLISH

Your hand is too small but not so small but still small

INTO JAPANESE

あなたの手は小さすぎるが、それほど小さくはないがまだ小さい

BACK INTO ENGLISH

Your hand is too small but not so small but still small