Be critical of praises

 That sounds ungrateful. 

But here's the thing. When friends and family praise you, it may not be very useful feedback. They may be just being supportive and encouraging. Don't let kind praises get to your head. 

To tease out more constructive feedback from your friends and family, ask them questions. Which part do you like most? If there's one thing you can improve, what would it be? What can be added (or removed) to make it better? Is there anything you would do differently? 

Also, remember to get feedback from strangers and your target audience.