You need to stop relying on God to make a change that you can enact yourself.
I'm not religious but RS GCSE comes to mind and the quote "Prayer, without action, is dead" comes to mind. You need to try to enact change if you want it to happen. Try to engage with your flatmates a bit more. If you have a shared kitchen, cook some brownies or something, offer them around and get talking to them (this is just an example suggestion). If you don't engage with them, they won't engage with you