New to this! Wanting to stay on track this time!

hey there, I'm olivia! thought this would be a good way to start, and introduce myself! I've never really counted my calories, or macros ever, and i see so much success in doing so! I often have a problem with food I always find my way back to the dirty foods, and ruin my progress! Just really looking for some awesome support and motivation, to help me along this journey! I don't want to fall off track as being its so hard to get back on! also if someone could explain macros better as well, as i have a general understanding that would be great!