If you have made up your mind to stop all the blaming and accusations you have hurled at you ex, then you should focus on whether you want to get back into a relationship with him/her.
If the answer to that is "yes" then you should take serious steps to change the circumstances around you! Start trying out the following steps to lure your ex back! Forgive him and yourself! To start afresh you have to get rid of all old feelings of hurt, anger and bitterness.
If you still harbor these feelings, then there is no point in trying to start anew as these will resurface at a later date and you will be back to square one! You have to forgive him/her and yourself for all the mistakes and weaknesses that led to the breakup.
Once you have managed to get rid of this - there is hope of a new tomorrow with your ex.
Take the first step.
Don't let pride stop you from getting your ex back! Be the first to apologize and say you're sorry.
This will melt his/her heart.
You don't have anything to lose except your pride maybe and it is OK to lose that if you gain your ex back! Apologizing will give both of you an opportunity to forgive one another and let the love flow between you again.
Become popular with his/her close friends.
If his/her friends begin to like you - this will show and your ex will begin to notice those qualities that make you so popular with his/her friends.
These same friends will tell your ex that he/she is crazy to have broken up with you.
Be the helpful, cheerful and an honest buddy to everyone.
You will earn good reviews from all those that matter - most of all your ex will start admiring you again.
Zip your lips! Never criticize and talk behind your ex's back.
Sooner or later he/she will hear of it and you will blow your chances with him/her.