What is the proper action and solution for what the questioner is experiencing from the harm inflicted by her neighbors—such as spying, seeking out private matters, cursing, insulting, and spreading lies about her—which has deprived her of devotion in worship and peace of mind?

Harm to neighbors is an abomination that contradicts Islamic law. If neighbors transgress against religious law, it is advisable to be patient with them while taking necessary precautions, increasing supplications for their guidance, and offering advice kindly, or seeking help from virtuous individuals. If they do not benefit from advice, one can resort to the prophetic remedy of placing one's belongings in the street, or threatening to report them to the authorities, or moving to another residence, all while striving in obedience, worship, and frequent remembrance of Allah.