A lot of rich people are people who got everything from their parents but I know few people who are millionaires and they earned everything by themselves.
Honestly, you must fail at some businesses and you need to accept that you will fail on your path to success but if you don't allow that to keep you behind for a long long time as some do it will lead to big success in the future.
My biggest regret is that I started learning about businesses and stuff after I failed some but now everything i do is going better and better and if i put enough dedication it happens fast

)