Some people find great success early in life. For others, it takes many many tries. Walt Disney was opened up an animation studio and was failing financially for a long time before Disney Land was a thing. Colonel Sanders had a similar circumstance – he invented KFC when he was 65.
The point is – keep at it. The jackpot may not be hit on your 1st, 2nd or 10th try. But keep going. Be resilient. Learn from your mistakes, and apply them to future potential successes.