Whatever or whoever you place first in your life is the god you serve! No matter how much you deny it or how much you convince yourself ptherwise, your primary focus is your god.
If you would like to find out who or what your real god is, think back on the prayers you've prayed in the last few weeks. If you've been praying for safety, comfort, and for things to get back to normal, it's pretty clear that one of the gods you serve is you. If you've been praying for the Lord to be glorified in all you do, you're on the right track.
Just get honest with God and with yourself. You may be amazed at the number of "firsts" you'll be able to bring to the Lord in repentance. Smile! That's a good thing!