Re: New to pumping - so many questions!
Welcome to the forum!
It's totally okay to stop pumping in the morning, and simply pump in the evening when your LO is getting a bottle. As long as you're able to fill tomorrow's bottle from the evening pump session, your supply is staying even with baby's needs and that's a good thing.
There's no one right answer to the question about how long you should pump. Some moms get the milk they need in just a few minutes, others will take 20 minutes or more to fills bottle. Stop pumping when you have the milk you need- whether that's 5 minutes or 25 minutes.
No need to sterilize everything more than occasionally. Soap and water wash will suffice for daily use. And there's no need to clean everything immediately after pumping. In fact, my LC suggested I save time and leave the pump unwashed, and reuse it the next time I needed to pump, and only wash it after the second use.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"