This is really true, but still many people don't understand it. There's no point dwelling on the past experiences you had, just get up and keep going!

As Gary Vaynerchuck would say: "The answer to everything is; And?"

It doesn't matter what happened to you, or your family/friends. You might be sad right now, and it's completely normal to be sad, but you need to remember that there's literally no point making up excuses and dwelling in the past sh*t that has happened to you... I can guarantee, there has been someone in this world that has experienced the same stuff you have, but now he/she is successful because he/she got up.

“Life's not about how hard of a hit you can give... it's about how many you can take, and still keep moving forward.”
-Sylvester Stallone, Rocky Balboa