Not literally, no. The "church, " is an earthly institution that represents the Body of Christ, but is not a building, a location or a group; the "church," is the body of believers in Christ wherever they are. You are as much a part of the church in spiritual sense while you sleep at home, strive at work, etc. However, a Christian should reflect obedience; and neglecting church attendance robs both you and others of the benefits of fellowship and sound scriptural teaching. It is a critical element of the faith that is vital to spiritual growth and obedience; as well as a source of strength, wisdom, accountability, etc. While you are spiritually part of the church wherever you are, being literally present brings incomparable spiritual benefits...its like multi vitamins for the soul. If you don't attend a church I advise at the least, watch weekly sermons on the internet so you can at least hear what God has to say, and not inhibit your growth.