Validity of nikah - revert

Hello I am wondering if my nikah is still considered valid… I am a revert so when I married my husband and I just supposed that I didn’t have any wali, so we just got a guy from the mosque to be it for me… after a year of marriage we realized that my uncle on my dads side of the family is Muslim (he converted only because of marriage, so he isn’t practicing. Also I don’t really have any relationship with him and I rarely see/talk to him) Now my question is, is my nikah valid? I did it without any family present only a guy from the mosque and my husbands family.