That is a good start. Drive and determination are key. I noticed a couple things that could be causing issues.
If you can, try to change your own thought process regarding contact. If you think that you did not make contact, then your efforts will be defeated. Try to understand that the spirit does absolutely hear you, even if you cannot be aware of any ‘change’ in the room. In other words, you have to KNOW they heard you, even if you did not hear/see/feel anything. I’m not talking about having faith. I mean you have to know they are there.
Again, it could be your approach after the fact. When you ask them for help do you walk away from ritual hoping or believing that they will help, or do you walk away knowing it is already as good as done, even though your manifestation has not occurred? This goes a long way towards fixing the lust for a result.
Which brings me to lust for results.
That can make it very hard to get certain ‘images’ out of your head, especially at night before you go to sleep. Keep in mind that what you think about, you tend to bring about. So, not to be crude, if you can’t get the thought of your husband with another woman out of your head, then that is probably exactly what will happen.
This could help: curse, bind or banish her. Take her out of the equation. Just the simple act of going through the motions might be enough to tip the scales in your favor, even if only on a psychological level.
How are you visualizing it? Are you visualizing the scenario where you two get back together, or are you visualizing the two of you as old people, holding hands and surrounded by loving family as a single unit during the golden years of your lives together? Visualization is a tough one, and many people get hung up on this at first. It is the chief reason (along with knowledge over faith) that prayer fails to produce results. Also, have you tried visualizing yourself as your husband? This is a big one as well if you are looking to bend someone’s will.
I truly hope this helps. Love magick is tough, especially when the emotions are so strong and there is a real bond between the two that have broken up, but you have the right idea: do not give up!