In the Bible, whenever the good news was preached, those who believed were baptized right away. An example:
[Acts 8:12] When they believed Philip, as he proclaimed the good news about the kingdom of God and the name of Jesus Christ, both men and women were baptized.
In another context, Philip preached the good news to an Ethiopian court official in charge of the treasury.
[Acts 8:35-38] Philip opened his mouth, and he told him the good news about Jesus. And as they were going along the road they came to some water, and the eunuch said, “See, here is water! What prevents me from being baptized?” And he commanded the chariot to stop, and they both went down into the water and he baptized him.
Baptism is an inseparable part of the good news message. It’s a commandment of the Lord Jesus Christ and the first act of obedience for anyone who believes in him. After his resurrection, Jesus told his disciples:
[Mark 16:15-16] Go into all the world and proclaim the gospel to the whole creation. Whoever believes AND is baptized will be saved, but whoever does not believe will be condemned.
The Bible doesn’t promise salvation to anyone who refuses to get baptized. If you believe in Jesus but refuse to get baptized, you are willfully disobeying Jesus’ clear command. Your problem is not inability but unwillingness.
Someone who believes but refuses to get baptized is no different from a woman who accepts a marriage proposal but refuses to have a wedding. She shows she is not serious about her commitment.
The Bible only mentions adults being baptized, never babies. Baptism comes after repentance and faith. Since babies cannot repent and believe, baptizing babies is meaningless. It’s just a man-made tradition with no Biblical support. If you are baptized as a baby, your baptism is not valid.
If you want to follow Jesus and get baptized, ask God to show you where to do it. You don’t necessarily have to get baptized in a church or become a member of a religious organization. Any believer can baptize you, not only an ordained minister.
I myself was baptized by just another believer and not in a church setting. When I repented and turned to God in January 2017, I promised to obey him in everything to the best of my ability. I also told him that I don’t want to be a member of any religious organization because Jesus didn’t come to create religious organizations. I do believe in being part of a local Christian community, but I refuse to have a denominational label attached to me, such as Catholic, Orthodox, Lutheran, Baptist, Pentecostal, whatever.
If you want to follow Jesus and get baptized, just pray about it and rest assured that God will make a way.