Will investing really make you rich?
A very basic question with a complex answer, what you need to understand is the circumstances of investing.
Investing exist in a lot of different forms like real estate investing, stock investing and cryptocurrency etc. 
What you need to understand is that you need to be very educated in your niche and if you don't have the patience you should never think the tough of becoming one. 
Investing will make your rich if you have a good strategy

What is a good strategy? 
Have a plan 
Invest money that you are willing to lose
Surround yourself with great people
Don't overspend money on useless thing like shopping etc.