This is a fairly heavy post. Forgive me if it takes some time to get through it all
First, Hell is never so much a spiritual thing in dreams (unless it's a prophetic dream, but those don't count as they're not about the dreamer...ever). Instead, Hell is more looking at the consequences of whatever choices you've made in life. The path behind you as you advance toward Hell is being destroyed. This could mean that you feel there is no way of turning back, or no way of avoiding the consequences. "Find a person worth knowing". Hmm.. This could be a subconscious cry for a support network, and a response of acknowledging that your family is your support. How is your irl relationship with your family? Are you estranged with anyone featured in the dream? Also, since you are everyone in the dream - how are you similar to your mom and brother? It might be that you feel traits shared between the three of you have caused the consequences you're having to face.
On to the House of Fire, the specific consequence for some choice or action... Regret of that house seems to back up the consequence metaphor. I need to ask before I go any further - what do you mean "the house was flooded"? Are we talking to the ceiling, chest level, a few inches? The story is in the details

I have a feeling that once again, everyone in this house is some part of your psyche. In fact, it may be that the house is you (technically buildings can represent the physical aspect of your body). So whatever the consequence, it's going to be damaging to yourself and you sense that it could be heavily damaging to your psyche. You shouted to the mother but she didn't hear you. First, nobody heard you probably because they are all part of you. Second, I think the mother drew your attention because of the children, which means that you feel that there are people depending on you to help care for them. They aren't necessarily children, just in need of nurturing. Oh, and let's not forget the rules. No breaking windows - if the house/hotel is your physical body, then breaking windows could be conceived as self mutilation and your subconscious is seeing that no amount of self destruction can help avoid the coming damage.
Being flung from one pit to another could simply be the worry that your choices will continue to lead you to consequences like that in the Hell metaphor. "No matter what I do, I just keep going from one bad event to another."
What things in your life do you see as having been unavoidable? How much of this looks to have been a pattern that continues over time? Who or what are you blaming for it? How could you have changed things to better the situation? How can you change yourself to avoid these consequences in the future?