I'm glad others have mentioned how the term steep is a bit of an odd one to use.. To me, steeping has always been the act of immersing a solid in hot / boiling water to extract flavour.
You steep tea, you don't steep e liquid so to speak. I've always preferred to think of it as ageing like a nice whiskey..
A week in the dark, cap on, shake every now and then, taste, evaluate, repeat if necessary. Goes for homemade and shop bought. As others have said patience is the key.