Things happen because they are designed to teach you something. Every step you take, positive or not, you will find hurdles in your way, discouraging you, willing you to fail.
Sometimes you give in and do fail.
And other times, you don’t.
But with each passing hurdle, each fall, you are carved into a different person, just like the molten iron which must be beaten before it attains its final beauty and form.
Remember that life was designed to give you that splendour of shape and sinew, and that it could never have been achieved with you making the mistakes you made and realizing them never to make them again.
Regrets come in the way of your will to never make the same mistakes again and if it were for them, you would just end up getting beaten harder and harder, till the ironsmith realises you cannot be carved and throws you away for good.

Moving on will help you make yourself into something and someone that you, yourself can respect, despite the hand of fate or destiny or incidents in making you that person.