The camera is a box of darkness.
The lens is just a lens.
Your ideas matter.
Certainly, one camera or lens may be necessary to execute an idea. If you only have ideas that can be done with another camera, or other equipment, you need to think harder. Even a crappy ancient phone camera, 640x480 can be used to make a compelling image. You can't print it sharp at 16x24 inches, but it can still be a powerful image. All you need is an idea.
If you have a specific end goal in mind, the equipment matters. Do you want to sell photos to National Geographic? Do you want to make large prints for your home? Do you want to take pictures of your children, without flash? If you think only that you will take better photographs if only you had X, you are kidding yourself.
If you want to buy some gear, explain to yourself what you're going to do with it. Do you need the new lights because you want to shoot portraits? Great, buy 'em and shoot some portraits. If it would just make you feel better to own some more photo crap, well, great too, but it's not helping you make better pictures. Far be it from me to judge you, but I will anyways. Consider yourself judged.