When someone offers help or advice on a matter that is none of their business, it's essential to respond assertively yet politely. Here are some phrases you can use:
"Thank you for your concern, but I've got it under control."
"I appreciate your willingness to help, but I prefer to handle this on my own."
"I understand you want to assist, but this is a personal matter I'm dealing with."
"I'll keep that in mind, but I'm confident in my ability to handle this situation."
"I'm grateful for your advice, but I'd like to figure this out on my own."
"I value your input, but I'd rather find a solution that works best for me."
"I'm touched by your offer to help, but I need to handle this in my own way."
"I know you mean well, but I'd like some space to deal with this issue independently."
"Thanks, but I prefer not to discuss this topic with others."
"Your concern is appreciated, but I'm okay managing this on my own."
Remember to maintain a respectful tone and assert your boundaries firmly. People might genuinely want to help, but it's crucial to assert your independence and protect your privacy when necessary.