I plan to be an RN, but I chose to become an LPN first. I am 4 months away from graduating. I have 3 little girls, and a day RN program was not practical for me because I take care of my daughters during the day, so I go to school part time evenings and weekends. I love the idea of getting a few years experience as a nurse before getting my RN and BSN. I don't believe it is a step back but rather a stepping stone.
After graduation, I am moving to my home state of NH, where LPNs make about $28 an hour, which I will certainly be happy with.
My nursing instructor worked as an LPN for 10 years before getting her RN and she said she breezed right through the bridge program because of it.
If you are second guessing the journey you are on, there may be a reason for it. If your mom got sick and an LPN is taking care of your mom and she's inspiring you, that may be the answer to your prayers/confusion.
Your pre-requisites have not been taken in vain, you will need them for the RN program when you're ready.
You can always apply for an LVN program and take the entrance exam and see what happens and go from there!
Hope this helps!