So you still have 100% of your bitcoin wealth.
If this wealth is enough to get you grounded wherever it is you ended up, then you get yourself the communications devices you need to use bitcoin, to obtain dirty fiat or whatever, and you make a plan on how you will start rebuilding.
The very first step is to get access to your bitcoin.
You reach out to someone with a laptop and a usb flash drive. You download Tails OS and you boot Tails from that USB flash drive. Tails has an electrum wallet (or you download some other wallet you wish to use).
And then, from there, you then have the ability to buy your own smartphone, laptop + communications devices/services (with bitcoin), or you do a trade for dirty fiat, or whatever, so that you have "currency" that can begin to execute on your plan to rebuild.