Hi John, congrats on the new business!!! What are you doing?
I think it's natural to feel a bit uncomfortable right from the beginning. You'll figure out what your comfort level is. It's a different place for everyone.
Some entrepreneurs I've worked with have felt comfortable from day 1! This is because they believed in what they were doing and they believed it was the right thing for them. Now, they still had concerns; money, time, is it going to work, etc. But, they concerns seemed easier because they KNEW they were doing what they should be doing.
One thing I suggest (if you haven't already) is to write out a clearly defined vision for your life. Not just your business, but your life as well. Use the following sections: financial & wealth, career, relationships, you're body & health, personal development and recreational time. Clearly write out what you'd like you're life to be like in each of these categories, then read at least one section each day. This will help remind you of where you are going!
If you need help, we're here! Feel from to connect with me at anytime if I can be of assist, or give you a bit of encouragement! My website is www.scomo.me and there is a Contact Section there. Feel free to reach out to me through there!
Good luck John!!!