Trust Him and praise Him even when you do not understand what may be happening. Jesus is the Author and Finisher of your faith. After all, He is the Judge. People can, and probably will, disappoint you. Even if they are other Christians, do not base your faith on them.
People can miss it and make mistakes.
They fail, but Jesus never will. Do not allow what others do to control your life. Keep your faith in Jesus. He called you and He will keep you. He will complete what He began in you.