you just got to be happy bro. When we go through good moments we tend to wish for more.
But as old saying goes "there is no way to happiness, happiness is the way".
So you have to enjoy the fact that you can shave your head. There are people out there who have
problems with their scalp preventing them from shaving and yet they would wish to be able to shave.
Count your blessings & enjoy life. Happiness will not wait for you, so why should you wait for it?