Kelpie lover. Reading your last post, you did your research, and 'thought' you could handle it. Reality suggests that you are having a hard time handling it.
Working dogs are different to pet dogs, VASTLY different.
Instead of viewing this from your needs/feelings/perspective, i ask you as a Kelpie lover, to consider things from the kelpies. Would she be happier with a stay at home owner? or being a "indoors' dog?
Your options of what you can/cannot do are reduced as this is a working dog, further reduced by you being at your parents home who will not allow the dog indoors, and you not being available all day every day, at 21, your budget restricts you on what resources you can employ eg. animal behaviourist.
A working dog is not for beginner dog owners. You say this is your first dog. I know that you have had previous dogs, but perhaps your parents were more in ownership mode with those than you were.
You would not be 'getting rid' of your dog. You would be putting your dogs needs first, and your emotional needs second to that. This is what i call, responsible dog ownership. Ensuring that your dog gets the life it requires to be happy. Sometimes, we are not the best person to offer this life. That might be due to circumstances, age, income, environment.
I once got a rottie from such a person as yourself. Great dog, a few issues like never came when called, dog aggressive. Owner just didn't have the time to put into his working dog, from working lines as his own business took off from his unit he lived in with the rottie?
We took Kevin from this man who loved his dog to bits, and whilst it broke his heart to hand him over, we kept in touch with him, sent him xmas cards from Kevin and photos, i had the time, patience, SPACE, to keep such a dog safely occupied and trained him from scratch once more. Within 6 months, the dog was like a different dog. So calm and settled and always came when called, and would tolerate dogs walking past him. Never a dog friendly thing, but would show some manners and not try to eat anything on four legs crossing our path.
On another aspect, Kevin 2, our second rottie, came with us when we had to move interstate to QLD from Vic. The fleas and the heat made my gorgeous boy go from supreme condition, to bald, red sores, irritable, unhappy. Despite lots of help from our vet, we couldnt get the flea allergy under control. I had to rehome him to cooler climate. This broke my heart too. But i found the best home i could for him. And i too received regular updates over the last remaining 3 yrs of his life with his lovely new home and family on Vic/NSW border.
Dog ownership is tough, giving one up is tough. Best wishes for the resolution you both deserve.