Defo the right shout to think about knocking it on the head if you're feeling like this mate. There are alternatives to gamstop I believe but I've never used any so couldn't recommend one, I know gamban was one I had heard of but I think it's a paid app so try doing a bit of research for available programmes in ROI
In the mean time I would suggest closing all accounts you currently have or at the very least putting a loss limit on each for the month then hopefully you might catch yourself on during registration if you have to open an account elsewhere.
Sorry I cant be of more help but hopefully you get past it and th n world returns to some normality soon
Get some limits set although obviously you can just go on other sites so only a little help.
If you have no Gamban I would suggest confiding in someone very close to you and ask them to manage your money in the interim. If you don't have access to money then you can not gamble. It will allow you to cool off until lockdown eases. I've done this back in the day with family and friends. Amazing how quick the urge goes when you know you can't.
I've had a look there and there's a place giving free gambling counselling in Dublin and Waterford. If you email them at info@problemgambling.ie you can set up a time for a video chat. They will hopefully help you and should know a blanket way to ban yourself if there is one available in Eire. I think there's a way to ban online purchases with some banks here, I'm not sure which ones but it's worth looking into, alternatively you could go old school and ditch your cards till you have more control. Best of luck!
If it's not an issue normally I'd ditch the cards until this passes. You can take money out easily in the bank and you can get virtual cards for anything you need to buy online (casinos don't accept them). Self checkouts still take cash as does everywhere, they just prefer you to have cards as less to touch. Keep washing your hands and using sanitiser and you'll be fine.
Pick 1 or 2 casinos to play at only, close the rest.
Then set your comfortable limits on those 2.
If you can't do that and still find yourself opening other new casinos to play, then it's time to gamstop.