When Christians come together they make up the body of Christ in the church. The church needs everyone to function properly, take care of each other, and go out into the world as disciples. You have a part in the church. It id determined by God. The church is flawed because it is put together by flawed people including you. That does not change the fact that you are a part of Jesus' church if you are a Christian.
Every Christian faces persecution in some format. The church can cause the worst hurts in people, so it could be where you feel persecuted. If that is the case, push deeper into your relationship with Christ and figure out what you can do to change or make things better. Forgiveness can be very hard, but it also leads to healing. Forgiveness is also not something you can do when you feel like it. Jesus commanded us to forgive each other because he knew you would benefit from it.
When the church struggles it sometimes parts. This is good if a part of the church wants to be unbiblical. It is bad if it is just personality differences. When you let the world into church you are going to have problems that hurts everyone in the church. Sometimes you have to push your own agenda, pride, and opinions aside for the greater good.
The church needs to come together to pray over the world, each other, and confess struggles so that you can see the best in each other. You are called to be a community not a meeting place of strangers that only talk once a week. You are called to work together using your spiritual gifts to strengthen each other. If you don't have community, then you don't have strength and security in the church.
If you have spiritual gifts, then you are exalted to serve not for your own benefit. The body of Christ is to come together unified in trusting God. Use your gifts to build each other up to be strong in Jesus. If you are a Christian, then you do have at least one Spiritual Gift. It benefits everyone if you learn what it is and how to use it the way it is meant to be used: helping the church. Spiritual gifts leads to learning, counsel, prayer warriors, strong faith, revelations, boldness, and more.
Society has a way to segregating people: sex, age, race, culture, education, money, and more. In the church you are called to leave all that at the door. God doesn't care about any of it. He is aware of how it affects your life, but when you come together you are one. You are united in Jesus. Titles, class systems, and sin only cause division.
Unity does not guarantee that you agree on everything. It means that you work at hearing people out and seek a solution. You are still an individual person with your own personality, thoughts, and ideas. You are also a part of something bigger than yourself. You can still be you and a part of Jesus' body. The point is that you as an individual are working to be closer to Jesus. If you do that, then you will naturally work at being a part of something bigger than yourself: the church.
Jesu is the head of the church. The pastor is the spokesman for Jesus. The teachers are the educators of God's Word. It doesn't change the fact that everyone still answers to God. Everyone has a different role, but when you put the roles together it is beautiful, holy, and strong. It is all sewn together through love for Jesus and each other. It isn't perfect because each person gets in their own way occasionally, but it is better than the alternative.
Romans 12:6-8, 1 Corinthians 12-13:3, & Philippians 1:20-24