If you are not satisfied with who you are right now, just learn something new in order to change yourself. Changing oneself or adapting oneself is a goal, and learning is a medium to enact that goal.
Some losses are necessary to learn: learn to never lose again.
There's no easy way. This is it.
The question isn't whether you know something or not. The question isn't whether you made a mistake or not. The question is whether you're willing to learn, willing to grow and be your best possible self. Your life distills down to the choice you're willing to make for yourself, not what you did in the …
If you can't do something, it doesn't mean you CAN'T DO IT. It just means that you CAN'T DO IT YET. Just figure out how to do it and practice, because that's what expertise is about. Cursing yourself for being stupid or blaming others for your own limitation is a vicious cycle of stagnation.
Everyone's so busy hating and envying others that they have lost the art of loving themselves. You can only spread love to others when you have it within you. Love rises within us and spreads across the world, but for some reason we are waiting for that light to shine on us.
You are not weak. You are in training to become strong. The only way you train is by accepting the challenges life throws at you, not by running away from them.
The only way to grow is to understand and accept change is common. If you refuse that then you'll only be taking away your learning opportunities.