Adjusting to the single life is like adjusting to the couple life, except it sucks. You wake up in an empty bed, order Chinese for one, and come home after a long day to binge-watch you and your old SO's favorite TV shows, by yourself. It's terrible.
But you know what is worse? Being in a relationship that isn't right.
Relationships are supposed to be hard work, but they aren't supposed to be hard. If you're defending yourself every time you talk to a person who isn't your SO when you have been faithful, if they are telling you what you can and cannot do like they are your parent, if they isolate you from your friends then you're in a toxic relationship. Listen to me: Get out.
So you're single, either by your choice or not. And that's OK. It may suddenly seem like everyone is in a relationship and everyone is super happy, but they aren't. Some of them are, but that's not the point. The point is you can be single and happy. Ludicrous, you say? But it's true.
Go out with friends you haven't seen in awhile. Girls or guys night out is a traditional single-again milestone that is important in the healing process. I'm not saying get trashed and call your ex crying. That's not healing. I'm saying get back to the you that you were before the relationship. Sometimes moving backwards is a bad thing, but in this case it can help you realize who you really are.
And you may realize you aren't the same person you once were, so now you're wondering who you are outside the relationship. That's the beauty of it. You can be whoever you want. (Well not whoever you want. That's called identity theft, and that's frown upon.)
Being single means focusing on yourself for a change. Think about where you want to be now, where you want to be in five years, 10 years, etc. Now you have no one stopping you from going or doing whatever you want. Go to that restaurant your old SO never wanted to try, check out that movie that looked stupid to them but you always wanted to watch, and take yourself out! You deserve to be spoiled by yourself. You deserve to be happy by yourself. You deserve to live by yourself.
Sounds lonely? It's not when you have friends. That's why you have them. The best of them, even if you haven't talked or seen each other in awhile, will make sure you get through this transition from a two-some to a one-some. But with them, it won't feel like a one-some. It'll feel like you won something.
You won yourself back. So work on that. Make sure you're happy by yourself before you try getting out into the dating scene again. Take a look at your old relationship and use it to help you determine what you want and don't want in your next relationship.
If you two were happy, you wouldn't be in this situation. So remember, "Don't let someone who did you wrong make you think there's something wrong with you. Don't devalue yourself because they didn't value you. Know your worth even if they don't." (Pinterest quotes, FTW!)
You're worth more single and trying to be happy than you do in the wrong relationship. You're worth a shot at true happiness, and you don't need anyone else for that.