Regardless of the situation you always gotta be there for people that were always there for you. It's called loyalty. You will only realize what you want when you don't have it anymore.
Now, smile. Enjoy your life. Wipe your tears. Stop overthinking. Everything is going to be fine. When there are problems. There are solutions. Go figure out. Work smart & don't push yourself too hard. Take a break & reward yourself once in awhile. You deserve all the happiness in the world.