You can come
You do not need to be Catholic to sit in the church, listen to the readings, pray quietly, and observe the Mass respectfully.
Mass
Yes. You may attend Mass. If you are not Catholic or are not prepared to receive Communion, stay in the pew during Communion or come forward only according to local custom.
Short Answer
Mass is the center of Catholic worship, and visitors are welcome. The main point of care is Holy Communion. Catholics believe the Eucharist is not a symbol only, and receiving Communion expresses full communion with the Church. If you are unsure, do not receive. You can still pray, listen, and ask questions afterward.
You do not need to be Catholic to sit in the church, listen to the readings, pray quietly, and observe the Mass respectfully.
Holy Communion means more than personal devotion. It expresses Catholic faith and communion with the Church, so visitors and unprepared Catholics should not receive casually.
Stand, sit, and kneel with the congregation as you are able. If you are uncertain, simply be respectful and quiet.
If something moved you or confused you, that is a good beginning. Speak with a priest, a parish staff member, or a faithful Catholic friend.
Do not let a screen carry what belongs to prayer, conscience, and real people.
A page can clarify the path. It cannot walk it for you. When a question asks something of your life, bring it back to God, the Church, and the people entrusted to guide you.
Next Steps
Source Trail
Good answers should point back toward sources, not ask you to trust a confident tone.
A practical overview of the Mass and its place in Catholic worship.
Open source→The Church's reference for Catholic teaching on worship and the sacraments.
Open source→A calm starting guide for learning what Catholic life centers on.
Open source→Continue