I am a revert and would like to know if my Nikkah is valid

Salam! I am a revert and Me and my partner had an online Nikkah in August 2023 with an Imam and 2 witnesses. All cameras were turned off. We received a certificate. Following the Hanafi rulings, a woman is not required to have a Wali so I did not have anyone. Both of our families are not aware of this Nikkah as my partner wanted to keep it a secret. Nobody from my family knows that I am Muslim as my parents are very against the religion. I am constantly doubting myself and feel that I have made a mistake. Any advice would be greatly appreciated!