How to Escape Obsidian Box in Minecraft?

I've been playing on an anarchy realm lately, and after stealing an enchanted book to put on my sword, I ended up being forced into a prison. Here are the main issues:

1. I have constant mining fatigue, due to being next to an ocean monument.
2. I have no items in my inventory of any kind.
3. The entire cell is made of obsidian; no other blocks.
4. No one is willing to come break me out because I am on no team.
5. I didn't set my spawn, but the server is on normal mode, so I can't starve to death.

My biggest question is whether is any way I could possibly glitch through blocks or find a way to die? I am playing Minecraft Bedrock Edition on the latest version.

Solution 1:

Given your circumstances, here's a possible way on breaking out without help.

You specified the server is on normal mode, but you can actually starve to death there. Basically, just run and jump until you lose as much hunger as possible. It is more faster to jump-run if you are in a cell with a 2 block height area.

Given enough time, you will starve to death and you can respawn and break out easily.

I know you already broke out, but this could've been an option you can use to get out. Yes, it is a slow and painful death, but it is manageable. Continue being AFK without actually heating up your switch too much and let yourself die.