Agreed with Zhelko -- being on the wrong side of time decay is dangerous and being leveraged is very dangerous.
I am technically leveraged, but I've been super conservative about it -- I'm using some of my leverage capacity to back selling deep out of the money puts. This means I don't pay interest, I'm on the correct side of time decay, and the worst case means I end up selling my other stocks at inconvenient times to buy a bunch of TSLA at low prices, in which case I won't be leveraged but I will be more concentrated. But more likely the puts just expire.