Hi Jansdad,well done for posting honestly about your gambling. As your wife already knows gambling had been a problem for you , perhaps you could tell her you are having a relapse and to control all the money. She will be a lot more disappointed if you lose even more money.
Having said that I have not told my husband..so I totally understand.
When the addiction has us sucked in it feels like we will never stop, but many on here have successfully stopped gambling, and find their lives recover. You have done it before so you know it can be done .
There is no point in chasing the money. As Jack says you have to draw a line under it and move on. Even if a compulsive gambler is up thousands they will usually keep playing until it us a gone, despite the promises we make ourselves before hand.
I echo what other say. Get a gambling blocker on your computer immediately and put whatever barriers you can in place.
This is a hard addiction to break Jansdad , but it can be done and I know you will do it!!