What's the best way to stop caring about someone who doesn't care about you ?

I've had the same issue before, and still kind of do. You can't force yourself to just stop caring/loving someone, it's just not normal or healthy to drop feelings that easily. Kudos to whoever can do that but I surely can't. But, to numb the feelings a little bit, I sometimes just constantly remind myself that the person doesn't share the same feelings and that they aren't good enough for me or don't appreciate my many, great qualities I have and that I shouldn't waste my time caring about someone who doesn't care about me. I'll be honest, it's a lot harder then how I explained it.

Is it really that you want to stop caring about them, or is it that you want to start caring about yourself? I think it's possible to love someone without exposing yourself to the feelings of inadequacy, jealousy, or just "not enough-ness" that you feel whenever you try to interact with them and find their response (or lack of response) uncaring. Sometimes this does involve not interacting with them as much, or not looking at social media or things that remind you of them, but it is not so easy to control your thoughts. So don't punish yourself whenever you find them entering your thoughts; you don't have to entertain the feelings of inadequacy, jealousy, sadness, depression that they bring up, at least not permanently. You do not have to intentionally dwell on them or check up on their Facebook to see what they're doing, if you realize these activities send you into a spiraling depression of doom each time you engage in them. Pay attention to how you feel when you take certain actions. You can realize that certain feelings are indeed there, even if you aren't intentionally dwelling on them, and also know that you had a life before this person, and so you can have a life after them too. You still have traits and interests that are uniquely yours. Engage in them, and talk to the people who do make you feel cared for, or just spend time with yourself. Self-compassion is one of the most helpful responses and best things you can do for yourself. Examples of self-compassion include: sleeping when you need to sleep, letting yourself have outlets for your distress, phrasing your self-talk in a gentler manner, staying away from people or situations that make you feel down on yourself (if possible to avoid them). If eventually this person falls out of your life and you don't care in the same way that you once did, that's OK. It can happen and it does happen. But don't make this your aim for right now. Perhaps it simply feels too destructive or too unkind to your nature to make yourself stop caring. Make it your aim to care about you; direct that loving energy toward yourself if the other person will not receive it. The rest will fall into place as it is meant to.

Out of sight out of mind, out of mind out of heart. Never lose yourself in trying to hold on to someone who doesn't care about losing you. Letting go is showing you have control of yourself, and the only one you can control is you! Take your mind of of it and engage in stuff you enjoy, hobbies/sports/friends, keep your mind busy and at times talk about it. It helps :)

Just leave them alone say you've had enough and if they truly care they'll come back but in time, you can not force them to care.

Move on. Life is too short to care about someone who does not care about you. Focus on the people who really care about you.

We cannot stop thinking about someone that easily, but time brings the change. Every human is unique and we cannot always expect the same thing from others in return as we do. Accept the reality that, those who doesn't care for you are not really worth for you. You deserve better in all possible ways. Say this to yourself everyday when you wake up from bed. Good things happen tho those who do good to others, and let you wait patiently till you find someone who cares you so much than you ever do. May god help to those who help themselves in getting out of this pain:)

Move on! Don't waste your time on them! As soon as you start ignoring them, they will realise what they've lost.

Time is the only way to heal completely. It is impossible to automatically stop caring about someone; however distractions can help. Remember that every second you spend focusing on the person who doesn't care about you is letting them have control over your thoughts and feelings.

Remind yourself about how special you are. Do you really think you deserve someone who doesn't appreciate you? There are better people outside love :)