Do I need to worship every week?
Do you eat every day? – In the same way that bodies need nourishment every day (probably several times a day), so do our souls. 
Our souls are fed by God’s word as we are in the Scriptures every day. (See Christian Habit: Study.) God designed His creation to have a Sabbath every seven days, during which we rest and gather with other believers to receive God’s grace. It’s God’s plan—and it’s a good and gracious one!
Do I have to worship at St. Lucas?
Worship where you are! – If you are under the spiritual care of St. Lucas (a member or just consider St. Lucas home), it’s normal to worship here. However, it’s also common to worship with other family and friends at times. When you travel, you can make plans to worship at a local congregation. Most places in the US will have a nearby LCMS church, or certainly a Christian church. Attending our livestream can be an option also.