If you've never failed, you've never lived
Life involves taking many risks every day, and not all of them will end positively.
That's what defines risk.
But the flip side is that some actions will lead to good results, and it's generally better to have a mixed bag than to have nothing at all. Ideally, the good stuff will outweigh the bad, but you'll never reach that point unless you put yourself out there and hope.
Many experiences and adventures on the way took place for the good and for the bad, but the crazy difficult ones are the ones you remember the most and give you energy to go on and makes you reward the good times.