how can i lock my seed in the script?
If you find more words of your seed phrase then I'm happy to help you create a tokens file which will brute force the remaining words.
Three unknown words is fairly easy to brute force on home hardware (provided you know the position of the other nine). Four unknown words is very difficult, but will probably require renting hardware at a cost in order to do this, so the value in the wallet needs to be worth it. With 5 or more unknown words there is no point in even trying.