I took the index of your words, transformed the selection to binary, included 3 zeros, calculated the sha256 digest, took the 1st Portion of the hexadecimal to transform it to binary, extra a few zeros to your eight digits with the binary and bought 00000010011 which translates to 19 in https://alphabookmarking.com/story18750261/the-ultimate-guide-to-bip39-seed-phrase-mnemonics-generator