How did the New Testament church worship?

Jesus said He would build His church in Matt. 16:18. The church was always in the future tense until Acts 2. It was 50 days after Jesus’s death, on the day of Pentecost, AD 33. After Peter’s sermon, ( JESUS said He would give Peter “the Keys to the kingdom”.), 3000 Jews obeyed Peter’s command to “repent and be baptized…for the remission of sins.” Verse 47 says that “THE LORD ADDED TO THE CHURCH THOSE WHO WERE BEING SAVED.” This is the first time the church is spoken of as being in existence.

Christians met on the first day of the week (Sunday to us) to take the LORD’S SUPPER and Paul PREACHED to them. Acts 20:7 PRAYER was always encouraged in the New Testament1 Tim.2:8 and 1 Thess. 5:17. And SINGING Ephesians 5:19, Colossians 3:16, Hebrews 13:15. In 1 Cor. 16:2, Paul told the churches to take up COLLECTIONS on the first day of the week. THOSE ARE 5 acts of worship.

We are given the warning in REV. 22:18 not to ADD to his word or TAKE AWAY from it. Or God will punish us. Any other Acts of worship, if not in the New Testament,
would be from man—not God; or would be “boastful” works that originate with man and of which he can boast. Or would be “additions.”

2 John 9 we must abide in the doctrine of Christ to have God.

“Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call. Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.

And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers. And fear came upon every soul: and many wonders and signs were done by the apostles. And all that believed were together, and had all things common; and sold their possessions and goods, and parted them to all men, as every man had need. And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart, praising God, and having favour with all the people. And the Lord added to the church daily such as should be saved.”
‭‭Acts‬ ‭2:38-39, 41-47‬ ‭

that’s the church in it’s pure form

It would not be difficult at all to follow the New Testament pattern of believers assembling to worship on the Lord's Day, and also tke up collections for the poorer brethren and sisters, the widows and orphans, and the support of elders who labor in the Word and doctrine. But somehow, Christians go deceived into following a man-made pattern which just about rejects everything presented in the NT.

There is also the matter of exercising spiritual gifts for the edification of others, as noted in 1 Corinthians 12 &13. And we need not talk about "sign" gifts, since there are many others listed.

Furthermore, there would always be a plurality of elders -- not one man carrying the burden by himself, and quite unable to do so. God did not allow women to be either elders or deacons for His own good reasons, and now that has also been rejected by many.