I'm looking to make some actual profit out of the $50 in Bitcoin I have. Is there someone I can give my bitcoins to, and have them buy and sell the stocks for me, and take a small cut for themselves?
You are opening yourself up for scammers, I would just learn and experiment by myself instead of giving other people money to do this for me.
And I don't think it's currently possible to buy stocks directly with Bitcoins, like other have said before me.
50 dollars is also not that much, I would save up a bit more to start trading stocks, you could invest in some altcoins alternatively