Not saying it didn’t happen, but did you go and check price & charts with other brokers?
When I started there were a couple of weeks where I would have sworn I was being stop hunted and my broker was moving price just to hit my stops, what made it even more suspicious was I had just come off a winning streak. I found though that the other charts were almost identical. So, it was just that my stops were either too tight or in the same spot as all the other noobs.
Even if your broker isn’t stop hunting, larger sharks are. Large finanical institution CAN put enough pressure on price to make it move to where they assume a lot of retails traders stops are at. The tighter the stops the easier it is for them to do.
Most noobs calculate stops on what they want to lose, or if price falls below a trendline or something like that. I’ve found the best is to use part of the daily range, as in nick B’s trading strategy.