Being positive about negatives

My summer so far isn't so fun. My parents have been grumpy for working late and early. The kids are being themselves; irritating, loud, know it alls, and talk back. I've been stressing over all the chaos in this house! then to top it off all my friends flake out on all our activities that we've been planning since a month before summer. Like going to watch Karate Kid the first day it comes out. Nothing is going the way I want it to. I was grumpy and snappy for a couple of days, knowing that I shouldn't be for the kids. Having my parents being grumpy everyday is enough! Then there was this thing going around Facebook. People put as their status; If you like this status then I'll write something I like about you.
My big brother Conner Ahsue wrote>>My lil sister Iree
I like how cheerful u always are
I like how much u talk bout ur family which means u must love them a whole bunch
I like how ur always truthful and not shame to say anything:)<<>>Have a positive and happy attitude in everything you do! There's always a bright side when it comes to darkness. And as usual, the Brightness beats the Darkness to it's own game<<>

How do I know it's the right answer??

I pray all the time. I don't just pray for blessings but for help and to thank my heavenly father for the things I have. Like life. I prayed about something that has been on my mind since the 6th grade. The answer he gives me doesn't make sense. You see, I know the difference between the devil and Heavenly Father, and I'm sure that this answer is from Heavenly Father. But it still doesn't make sense. So since the sixth grade, I have ignored that answer because it just didn't seem right. But this year, I feel like I should listen to him. But I don't know how to. This is the first time in my whole entire life I have not known how to listen to somebody. Help!!