**what then is the meaning and role of Priests in the Catholic Church?**
You would not receive several sacraments if it weren’t for the priests.
Incorrect. Show me where in the New Testament that we cannot commune together and take communion without a Priest being present.
Anything beyond two or more people agreeing to take communion together in the Lord's name is nothing more than institutionalized ritual. Nothing wrong with institutionalized ritual, however it does not by itself or in conjunction with whatever Catholic doctrine says, prevent two or more people coming together in Christ's name and taking communion.