Hey, how long were you in the relationship for? If you were in the relationship for over one year it's going to take longer than 6 months to fully get over him.
What have you been doing to help your situation? If you haven't been doing anything and you've just been hoping that time alone will fix it, it wont because your identity isn't changing, just your surroundings. From the sounds of it, you still have your ex on a pedestal, that isn't healthy, the coward dumped you, you deserve a man that wouldn't run, that he will plant his feet down for you and hold onto you for good and if he does run that he always comes back pretty fast with heartfelt apologies and love. Imagine if he pulled out of a marriage with you? Ran away from the maternity ward when he realises he now has a kid? Left you when you got very sick? You deserve better than that type of person. Regardless of the mistakes you have made, as long as you fix them then if you want to believe in a "soulmate" he'll be back by his own free-will. You don't need to worry about the future, if he doesn't come back it's his loss, the fact you are on this subreddit showing how much you love him, damnit woman, you deserve better!
I'm not saying you need to vilify your ex but do you realise all of the flaws? If you loved your ex so much, you deserve somebody that loves you just as much! What if you meet your ex and realise that you don't even recognise them anymore? You might think that "at least you would know" but nah buddy, not at all, imagine how you will feel when you realise that the person you loved is dead? At least if the person returns looking for reconciliation you will know that there's something in there that cares for you. Chasing after your ex will only lead to one thing: An ego trip. It will reassure them that "I must be great, I can break up with somebody and they still chase me? I might be a catch" well sorry but don't feed cowards. They love cheap thrills and don't deserve it from amazing people. Don't entertain them, it is very important that you work on yourself. I'm not talking about just "Oh yeah, I've made myself get new hobbies, friends etc" it's more about realising that your relationship did restrict some avenues and visualising a future without your ex. Chase your future, not your past. Honestly, three days ago I had a sudden relapse of feeling like "Oh my fucking god, I still care about her. I want to see what she's up to" but well, I wrote a list of her negative traits after the first week of NC. I now look at the sheet when things get bad and seriously, it helps massively with reminding myself "Why would I chase this?"
A good quote is:
If you're going to get back with your ex you're going to have to realise that the relationship you had is dead, the person you loved is dead. You can never alter those memories, they will be with you for life, at least I know mine will be because of how my memory is. However, the feelings attached will disappear, same with you. In order to make a relationship with ANYONE (Including your ex!) work you have to realise that your old relationship died because of mistakes/miscommunication, you have to learn from your mistakes so they don't happen again in the future. Lets face it, if your ex did return and you got into a relationship while still being attached to the old one, the problems will resurface. You have to be able to see your ex as a new person and judge them accordingly. They deserve no points for past actions. You definitely didn't get any points for previous actions when he broke up with you.