I hope there is some way to recoup what I have lost; in any way.
No. Future actions don't change the past. The money you lost is gone. Even if you were able to mine (or work, or trade) and generate a profit you would have been able to do that even if you didn't lose the money you lost.
It is called gambling for a reason.
I have no choice since I lost nearly all of my money I had saved up.
Of course you have a choice, you have a choice to not beg.