Look, I know you feel broken. But it's okay to be broken; everyone is broken. No matter how hard people try to hold themselves together, or how perfect their life may seem, at one point or another, they felt exactly the way you have. They have been broken too. They've been shattered. They've thought it's never going to get better and everything is useless.
But they get up, dust themselves off, and fight harder. So what will you do with your broken pieces? Are you going to sit there and feel sorry for yourself? Or will you fight harder? Because at the end of the day, it's all a choice. You decide what you're going to do with your broken pieces. But most importantly always remember to give it all to God. He heals the brokenhearted and binds up their wounds. (Psalms 147:3)
I also want you to know that there is beauty in your brokenness and you may wonder what is so beautiful about depression, anxiety, sickness or whatever your case may be. Beauty in brokenness is trusting God and His perfect timing. It is also realizing that when one is broken, God will put you back together and make something beautiful. It is also realizing that sometimes the answer may be no. "As the heavens are higher than the earth, so are my ways higher than your ways and my thoughts than your thoughts." (Isaiah 55:9)
So whenever you're feeling down again, just remember you are like a sword that is going through the process of being made. A sword goes through the fire and gets hit on in order to get the right shape and size and back into the fire. This process goes on until the desirable look is achieved. But at the end, it is shining brightly and beautiful.