I’ve seen lots of definitions of “worship,” but this one by George Campbell Morgan is superb:
Worship consists in the finding of my own life, and the yielding of it wholly to God for the fulfillment of His purpose.
That is worship.
So worship does not begin by going to church. This is a very valuable part of worship, but it is secondary. The service is a pause in which in word and attitude we give expression to life’s inner song. If there is no inner song, there is no worship here.
It is in the service of a life, not specific acts done as apart from the life. I may preach today and never worship. But because my life is found in His law, answering His call, my life has become a song of praise. So I worship!