I would add that I don't buy stock anymore....
If I really wanted a long position in a company, I would buy a deep in-the-money (DITM) CALL with a delta near 1.0. I could do this with a lot less capital, a low erosion variable, and expose myself to the near the same movement of the underlying that owning the stock outright would afford me.
Always trade with the trend, be quick to take losses, and slow to take profits.