Hello,
If you wanted to make 50 Dollars a day what betting strategy would you take?
There is no strategy set in stone. You will just need to be persistent and wait for that big win.
You can't win if you dont play. The only thing I can think of is money management.
No strategy will be helping you to earn from gambling. Money management and other strategies may help you only for the time being and definitely will not get consistent profits from gambling. I believe $50 will not be possible consistently from trading also, so expecting that some gambling is highly insane imo.