Register Rage!!!

So today was such a hassle getting my WIC food from Wal-mart. We got everything fine and Grant was just crazy because it was so over his nap time. I try not to conflict outings with naps but it tends to happen frequently for some reason. I knew that for Nevada WIC there are certain registers that do the WIC transactions, so I asked the self check out lady what registers did it and she said "8, 18, and 20". She was playing with Grant a little and I asked one more time to confirm saying ""8, 18, and 20"? and she said yeah "18 and 20". So I thought she was just confirming the last two numbers I had said. So we went to register 8. We put everything on the belt after waiting in line and something about their system makes it easier on them if I put the baby food categorized by kind and brand. We did that. Then as we came to the lady she said that that register wasn't for WIC. So I was slightly ticked off but was like, whatever, so we went to 20. The lady was having problems on that register so we went to 18. We got up to 18 and put everything on and ordered the baby food like so and then the lady said at that register they didn't do WIC at that register! I was so baffled and frustrated and just wanted to cry and scream. Meanwhile my baby was just nutso and hungry and tired. I was like "Mom, you get in line in the correct line and hopefully it will be the right one. I really need to go nurse Grant". So I went and nursed him and gained my composure, maybe cried a tear, and prayed to be at peace and forgive all who had made mistakes that night or had frustrated me. So I came back calm and fine. We happened to be at a register that the previous woman had switch to who I had been rude to. she apologized a ton and I said it was fine and was just fine. By the end of the whole experience I concluded that I hadn't really been tried in a while since I don't go out much and that this was my trial for the day of which I feel like I failed horribly but kind of corrected it. Ugh. I need to be more mindful of my trials and how I react to them. What a day huh?! Above all, I was expecting Grant to cry and fuss the whole way home but he was surprisingly calm, quiet, somewhat babbly, and jujst whined a little when we were pretty much home. Thank you Heavenly Father for giving me some peace and quiet with such a sweet child.