Hi, SG!
Happy Birthday, btw! 18 years to do anything is remarkable. It's only more sweet that you've brought so much light into the world with that time. Cheers!
This is an image for photographers. I found it a few years ago and it popped up on my computer, today.
Even though I have a pretty good understanding of how F/Stop, Shutter Speed and ISO works, I still find this image to a helpful resource. Sometimes my brain just doesn't want to put it all together but, this image shows what each adjustment might make to your photograph.
QUESTION: Are you also a photographer? How long have you been practicing? Will you share any of your work, here?
Love,
Josh