In this case, subliminals will help, but as part of a more extensive process.
You need to review yourself and your life. You’re the best qualified to determine what your most important areas of growth may be. Don’t take shortcuts.
Ask yourself the tough questions and take your time so you get the answers right. Running off half-cocked with a sense of desperation is fine for getting you moving in the short-term but it’s not a long-term plan. And marriages and families are long-term situations.
Take a look around.
Assess what has happened. What did you do? What did others do?
(Guilt feels very appropriate, but it’s actually a cop out. Guilt will give you the illusion that you’ve actually fixed something because ‘oh God! I feel so bad!’ But it’s just an emotion. It hasn’t fixed anything. Try to take an objective look and see what your strengths and weaknesses were; your mistakes and your contributions.)
Get help ( and external accountability) by working through these issues with someone trustworthy. Maybe a professional.
Finally, clarify your values and your goals. What do you want to happen? If the only person you could control were you, what would you choose to do with that power?
THEN choose your subliminal.