Hi and welcome. Have you spoke to your partner about how it's all making you feel? Your first step would be speaking to your doctor lovely, they can help with how you're feeling and refer you on to or give you details to self refer to counselling. It might be worth seeking help for the gambling, Gamblers Anonymous may run groups in your area that will help you both deal with that. And it would be worth seeing Citizens Advice or contacting on of the debt charities about your debts.

There is a way through. I'm not a gambler but my ex was and he left me with a lot of debt. Companies have been really understanding about making repayment agreements with me.