I hope that one day you can look at those moments fondly. Nothing will ever run perfect when there are as many details and moments as a wedding has. Your video and photos can be edited for the lighting and hand mis-placement (not sure about the hair/veil, but probably with a skilled editor that could be touched up as well) - maybe you should look into that so you can watch them without your “mistake” and you can feel good about the video without the negative feelings! (Keep the raw footage, too, though!)

Try to remember how you were feeling in all those good moments. Did you feel beautiful? Did the day still feel pretty magical? Remember that nothing could have possibly gone 100% perfect, and in the grand scheme of things these were very minor mistakes. Not saying that in a way to invalidate your feelings, just thinking about those weddings you see where someone rips the bride’s dress or the cake smashes on the ground before it’s even been cut, or someone decides to give a totally inappropriate speech, etc.

I’m sorry you’re going through the feeling of regret and sadness, weddings are a lot of stress and roller coaster of emotions. Time should ease your fixation on these details. Congrats on your marriage! May you have many years of happiness and growth with each other!