Struggling to Get Back on the Wagon

Why is getting back on track so hard? I have been to and throwing more or less for the last 3 months. I am desperately trying to get back on the raw food track but why is it so difficult? At first I thought it was just me, but then I spoke to a good friend of mine who has also just had a baby and was high raw before pregnancy, it seems she is also struggling with a new born baby and raw food. My heart is genuinely in it but my will power is poor. Before I was pregnant there were times in my raw food journey when I fell off the wagon but when I consciously decided to hop back on I was able to easily give up the bad habits i had picked up at the time and even when cooked food was consumed it was never the terrible things I am tempted by today. So is breastfeeding to blame? Is it addiction? Is it poor will power? I can’t figure it out. Perhaps it is because I have been eating all the naughty things for so long that I am finding it hard to give them up for addiction reasons. Or is it even because I have been eating things that I hadn’t eaten for years and maybe I have just got a taste for them again? Maybe i should just stop trying to find an excuse or reason behind it and keep trying.