If you 'trading' then who knows what will happen and if you have made a good choice.
If you are 'investing', then you have followed the key rules (1) invest in management first - competent management that you believe in make the difference between ordinary and outsized returns (2) commercial results and revenue are king and queen - traction in the market and the promise of increasing revenues mean that long term the SP should rise, and (3) a tangible plan to grow. With CORONA, Android etc there is a clear path to growth.
It is my opinion that if you have little investment money then invest in something you know intimately and are comfortable in where you can see the clear value. For you an investment in NOR is more secure than with BHP because of that.
