"changes are no good"

Changing.
Isn't that humanity's strongest power?
It's certainly what differentiates us from other animals, other species. We can adapt so quickly, so easily, that we have become the dominant species on this planet. While other creatures have taken hundreds of years or millenia to adapt, we can do it in a relative snap of the fingers, changing habits, skull size, go from four feet to two, develop opposable thumbs, in the time it takes most living beings to think about maybe becoming different.
Change.
People say that's what is so tragic about murder. The killer takes away a person's ability to change, to do something differently, to become someone different, soemone new tomorrow. But do we ever really change? Once, someone said to me that we humans tend to emphasize what's different, what's disappeared, reappeared, or been created rather than what's stayed the same. What do you see first when you go home, the old rickety barn or the newly developed stores and subdivisions? What do you see when you look in your parents' eyes, the same old flecks or soemthing strange and new?
Changes.
I've never been too good at them. A teacher once told me on NELP that I need to let go, that the reason I felt pain was because I couldn't just let things change, I had to grind my teeth and try to stop things from changing all the time. Was it just bullshit? To be realistic, that statement probably applied then, but it probably doesn't now, because I've changed. Or have I? I think I've spent my whole life crying over spilt milk, from Morris the cat spread over 20 feet of cement on a sunny day to my friends being far away.
Changes are no good.
I want to let go, but I never felt anything so strong as the friendships I felt before. I've tried to make new ones, but it's all so shallow, like wallowing in a kiddy pool after swimming in the ocean. Being an adult has only taught me one thing: don't let the good things pass by you. Because they're so rare, so delicate, that you can neither force them nor drop them like old luggage. If you do, once you realize what you've lost, the gift is already broken and you'll get locked out of the house you've built around yourself. So don't tell me to let go again, at the drop of a hat; change may be humanity's greatest power, maybe even one of mine, but so is recognizing what's worth saving.