A tip about the hand on the face. Never actually lean into the hand or apply pressure to the face. Either cup the face placing the hand around the face but not touching it so much as to apply pressure. You see the dents being made in your face by the thumb and index finger. That type of thing will be avoided keeping you lovely as ever ...without dents. This pic is still at least a 7 even with tiny facial dents. You just can't hide that beauty. That expression is off just a smidge too. So close though!
You look gorgeous. The pose and facial expression is adorable but I think 3 out of 10 is too self critical. I say 7 or 8 because the black and white composition flatters you but I think stronger contrast could have strengthened the piece. Still, really good for a self-portrait.
You're right: It's a 3 out of 10. And it's cool that you're right, 'cause you're self-critical in a good way. You're aware of your beauty, but you realize that this one isn't the best of your poses and it isn't also the best of your expressions. It's a pleasure to see that there's a beautiful girl that isn't snotnosed.