My weight fluctuates, and I haven't always been skinny. I became curvier in my twenties, but I never felt self-conscious about it; going through different periods is all part of being a woman.
The one indication that I got that I was doing the right job in Bosnia was that at different periods of time all the factions came down very hard on me.
Of course there are depressing periods when nothing appears to be happening. But whenever anything was happening, and even when nothing was happening, it was fun just to do phage experiments.
Apart from two periods of intense study, of music between the ages of 12 and 14 and of mathematics between the ages of 14 and 16, I coasted, daydreaming, through most of my school years.