When will I stop thinking about my ex?

actually thinking about your ex is not always a choice. but you should try to live your life without him/her. well, at least if he/she really loves you and it was a serious relationship, you will get together again. but if he/she is not good enough, at least you're living your life. maybe you will cry and stuff, but crying is not that bad. what is bad is attaching your personal life with his absence.

the time u start to believe his was just a mistake but he helped you gained an experience to start up better and fresh

When you build up the strength and courage to realize you are courageous and are better without them.

It is almost impossible to break up and have no thoughts about your ex. You had been together and got used of each others company over time, and it will also take time to get used of being apart. You have to retrain your way of thinking about being separated, and try to think of the good things about being single and all the good things about yourself. Write a list of these things to help take your mind off him. You are important and you need to work on valuing yourself more than what you value your ex. Over time it does get easier.

I feel that this is something that changes person to person, situation to situation. If it was an especially painful breakup it could take longer, but in time all things fade. I have found that by reclaiming my life, doing things I love, and being with people who care for and support me this transition was far easier to manage.

Your heart needs time to heal. Everyone heals at their own pace and in their own time. Take this time to reflect on yourself to be able to best deal with your emotions.

You will stop thinking about your ex when you finally find something that occupies that area of your mind. Be it painting, walking, reading, etc, once you find something that makes you happy you will forget about him/her.

You will forget eventually it just takes time just focus on other things and eventually it will fade.

Whenever you find someone else to give your love to...when you go grocery shopping...when you are eating a good meal you will find yourself engaging your senses.

There's no specific dates or rules. But you'll start to feel it gets easier once you accept that you need to let go and/or continue with your daily life normally with or without the ex. Eventually time will fix everything. Finding replacement or a rebound also helps distract you (Not ideal, I wouldn't exact recommend hurting other people though but it's proven to ease for me.)