Didn't want to read and run, OP. Just wanted to say I think I get wheee you're coming from with your mum, mine has always been the same. I was always irritated by her blind faith, and I hated it when people said "thy will be done" because I thought that was stupid. As far as I was concerned, if God didn't answer my prayers how I wanted him to, or fast enough, then it was a sign he didn't care or was against me.
But then one day I heard a talk on Malachi. The Israelites were complaining to God that they had a hard life, it wasn't as hard as Job, but it was harder than the non-believers around them, and they felt God was abandoning them because of it. God told them (through a prophet) that he loved them, and they questioned: how? The person giving the talk said "if you distrust God's love then you will distrust his rule". Just like the Israelites were in the book of Malachi.
It changed my perspective. I asked God to help me trust his love. To give me the faith for that. Then I read the bible verses about His love, His will, His rule in my life, and I read it with faith this time. I can honestly say it's changed everything.
When you read the bible, both old and new testaments, you see time and time again, God being very involved with people. We have the edge on them because we know the whole story, but they often didn't. In the case of Job, there was total unawareness of the spiritual battle involved, yet he was able to say "though you slay me yet I will trust in you". I've said that many a time myself, and honestly believed it.
It also then shifted my view on my annoying Mum and her irritating, blind, faith over Every. Single. Thing. Everything! All the time! I realise her faith was immense and now I respect her for it. Funnily enough I don't want to whinge about my lot when life is hard anymore, I want to look to Him through eyes of faith. I may not know all the answers about why I'm suffering, but I know who does know, and he says he has a plan so I trust him and take him at his word. Now I pray I do so with my compass pointing to His Will, not mine. And I trust him for the rest, even if it's uncomfortable and I don't much like it. He knows, he has a plan, I continue to pray and trust.