Accept God into your life understand that nothing you think matters actually matters.
If you can't find peace in yourself you'll never find it externally, reflect on yourself, your priorities, your goals. Look deep down inside yourself, look out at that stars, understand they are one and the same and all connected.
When the last time you marvelled at the wonder and glory of god's creation? Showed appreciation for the opportunity he's given you to bask in his resplendent glory?
If you want peace, have it, but you'll never find it externally. Close your eyes, breath and become one with the universe.
I don't care if you believe in God or not, replace that word with whatever you want, the advice is still the same.