What you had done was wrong and a sin. You must repent to Allah and ask Him for forgiveness.

As for the house, as long as you have bought it and the price is fixed and whether you sell it or keep it, the price is fixed, in this case, you should stay in the house and pay for it until the 30 years are over because the harm has been done and the interest was committed.

I bought a house with riba and I have to pay about 800 euro a month for my mortgage for 30 years, after this time the house is mine. This payment each month does not increase or decrease. My heart is not attached to this house. I detest this state of mine