Divya Q.
Very firstly, find reason behind those thoughts. Did it makes you nostalgic? Do you feel sad?
Ask yourself. Make yourself distract for a moment for those thought. It can be temporary solution.
But, if you want a permanent solution. Find the reason behind that thing wonder around you.
Once you get the point it became easy to find solution.
And forgot to understand your self, believe yourself and last but not least LOVE YOURSELF 💜