Revert to the mean: life is like the stock market. You will have bad days and you will have good days. Make sure regardless of the up or down of today, you are investing in yourself and on the path going upwards over time.
For example, You may have a bad day while in college. Yes this is a down day, but your life is on the trajectory up. Invest in the index fund of life, individual stocks/days rocket and crash, find the balance, the index fund, that goes up with both up and down days. Bad days will be bad, but they will end. Find the index fund that regardless of the up and downs end up up, over time.