Asalamu alaykum wrwbru, when I was in 6th grade, I had waswasa.My family always talked about my marriage in the future.  I would always  think of my wedding and then all of a sudden make a dua saying "Oh Allah if I say I do/qabool/I accept on my wedding day then don't make it valid". Then I would say "astaghfirullah for me making that dua". And then all of a sudden I would say "no Allah whatever phrase I will use on my wedding day DO NOT except it and don't let this dua change due to any other dua or even if I say astaghfirullah"  This would have go on for 3+ minutes .Now that I am older I realize how stupid I was. Is my dua accepted? I did go through puberty back then. If this dua is accepted is there anyway around it?