Sorry you find yourself here but happy you are looking for support… this is hard to do without support.
I agree with others suggestions… try find a GamAnon. As different as everybody’s situation is there are so many commonalities that you will find a great deal of comfort & support … you are not the only one dealing with this.
Your husband is in denial. Gambling addiction is incredibly strong and very progressive. Unfortunately for your husband he will never be able to just bet $20. For him any amount gambled IS in fact ‘that bad’ as it just feeds the addiction.
As Vera says the best we can do is make a gamblers life very uncomfortable. It has to hurt to motivate them to change. Consequences have to be felt.
An active CG can have you believing black is white and up is down. Be strong in your boundaries… both emotionally and financially.
Keep writing!
Cathy