You do not need to obsess over ounces. The best guideline is the simplest one: drink when you are thirsty, and stop when you are not. Your body has been managing this for millions of years.
If you want a target, aim for around 8 to 10 cups of fluids each day. Focus on water, but give yourself credit for that soup, those berries, and the glass of milk too.
Your body is your home for life. Keeping it well-watered is one of the easiest, cheapest, and most loving things you can do for yourself. So go ahead, take a sip. Your brain, your skin, and your energy levels will thank you with a little happy dance.