Someone once asked...
Someone answered with kindness...
If it's an official debt, fill for bankruptcy. Creditors might try and gaslight you into not doing it, but you should. If it's an informal debt, you can often choose to ignore it to ease the damage on mental health, and watch out for anyone looking to deal you physical damage.
Another soul answered...
You have to start chipping away at it, because right now you are also building up a debt of guilt. Put 5 or 10 krona/euros/dollars, or the amount of one coffee, towards it every day. Set up a separate savings or checking account with a daily automatic transfer into it, then a monthly automatic payment from there to your debtor. It will take care of itself over time. 5 money units a day is 150 units a month, which is 900 over 6 months, and you may not even miss it! Good luck!