If you're asking the question of "Can I get my wife back?," then you must understand that you probably made a mess during the initial break up. Getting a wife back is certainly not an easy task for many reasons.
Every relationship has its ups and downs. So, you need to build up your confidence and show her that you are confident with yourself. The best idea is to give her the space she needs. The more you call your wife and try to win her back, the less likely it is that she will come back.
If you want her back, let her know how you feel. Be honest about your feelings. You can write her a letter with all your thoughts and feelings written down. Tell your wife that you can't live without her.
Show your wife you are the man that she first fell in love. Ask her out on a real date - movies, dinner, or something more romantic and unique than this. Start over with her as though you have just met. Be the most passionate man she has ever met and maintain this habit even after you win her back.
Give her plenty of space. If you still live together, this can be hard, but you can do it. Show your wife that you're no longer chasing her and her manner will radically change towards you. Take some time to work on yourself, to build up your internal strength and freedom again. Show her that you're still the strong, certain man that she remembers from when you first met. This is a very potent first step to learning how to win your wife back.
But regardless of the difficulties you are going to face, never give up. At the very least, do not give up if you still love your wife and really believe that getting back together is the best situation for both of you.