You might also look into whether or not you're conditioning your mind with "Single Guy" stuff. Meaning, you may state your intention verbally 10 times a day, but then be counter-intending with singleton thinking.
For example, do you watch movies which show single guys having fun, drinking beer, partying, having no attachments and no committments? Do you look at sports cars on the road typically driven by single guys heading to/from a club? Do you hang out with all your friends that are also single, or do you hang out and talk to friends who have girlfriends?
One thing I did when I was originally trying to find a girlfriend was to hang out with 2 of my other single buddies and do all kinds of stuff where all three of us would try to get around girls. THe thing is that we were 3 single guys partying with a bunch of other single girls. And it was kinda fun.
Then, one day I decided, "Ok, I'm tired of this, I'd rather just find a girlfriend than hang out with my single friends." and shortly after I met my wife.
It wasn't until I made that realization though. If you know some married people, or at least some people in relationships, see if you can get invited to like their kids birthday parties, or a house warming, or some type of event that people go to who are already in relationships. Meaning, if you're at a party that hosts 30 people, there should be you, plus maybe one other single guy there tops and the rest should be people in relationships except for hopefully a few single women as well
I think that might put you in a totally different frame of mind than being in a social setting with 300 single men and 100 single women at a club. There you're absorbing "Singleton" thoughts unconsciously.
Just some ideas on what helped me out. Just repeating words might not be enough.