Do not chase people. Be you and do your own thing and work hard. The right people who belong in your life will come to you, and stay.
So often it hurts us that we are not able to focus in our prayers. Remember, the more you focus on Allah outside your salah, the easier it will be to focus on Him inside your salah. Try to fill your heart and mind with Allah as much as you can throughout the day. Talk to Him and make dua to Him constantly. This will build your personal relationship with Him. Then, going to salah will be like coming home to a friend.
If you find a darkness in your heart after you sinned , know then that in your heart there is light, because of this light you felt the darkness.
Try saying Alhamdulillah when you’re confused, when you lose something, when you’re stressed, when you’re broken or beat, when you fear, when you lose hope, when your heart breaks… Praise the Almighty because if He raises you, nothing can bring you down.