trading with one's own money is not the same as with the borrowed funds (read, someone else's money), while trading with 500 dollars is not the same as trading with 10x as much
No, it's definitely not the same and I think newbie traders who start off using leverage can and do get themselves into serious trouble by trading (gambling) with other people's money that they're paying interest on. I've never traded on margin and never intend to--and believe me, I understand that your potential profits can be much higher but I don't like the level of risk associated with it, nor do I like borrowing money.
And in general, even though I do think that bitcoin is going to head much higher in the next year or two, I would
not recommend that anyone take out a bank loan or even buy it on margin on an exchange. That's just me, though. The crypto world is filled with individuals who have a much higher tolerance for risk than I do, so I wish all of the margin traders--and whoever else borrows money to buy crypto--the best of luck.