It's OK to realize that the path you're on doesn't fit you and isn't going to make you happy, and to chose to get off that path and pick another one that will fit you better. Really! It's OK!

But...

There also is no perfect life. Nothing on earth ever perfectly satisfies. Your dream job won't pay enough for all your other dreams. You may find a wonderful person to share your life with, but they won't be perfect. Some of their dreams will clash with some of your dreams.

When that happens, don't throw out something really good to try to reach something perfect. It's only perfect in your dreams. In reality, it may not even be better. "Take time in your pursuit of happiness to just be happy."

So, yes, you can ditch a path that doesn't fit you. But no path fits perfectly. Don't destroy something good in order to try to reach an unattainable amount of perfection.

Where's the line between those two kinds of advice? Aye, there's the rub...