You know every seven years, all the cells in our body are changed with new ones. That means even if we are the same person, we are not actually the same we were earlier. So we have every chance to change and to be better. These change in cells is what helps us to get over the past griefs, strengthen ourselves and get up more strongly.
So just keep grinding and never give up. Come back more strongly than ever and get up every time you fall. Because getting up is the only thing that will lead to success and a happier and meaningful life.