I think there is no point in regretting. Regret can only lead to more regret in future if you don't concentrate more on the present. “Whatever happened, happen

I think there is no point in regretting. Regret can only lead to more regret in future if you don't concentrate more on the present. “Whatever happened, happened for the good; whatever is happening, is happening for the good; whatever will happen, will also happen for the good only. You need not have any regrets for the past. You need not worry for the future.” [this one is from Bhagawad Gita]