Good luck doesn’t always lead to success. You need to capitalize on the good luck event and take advantage of else it’ll be squandered.
Bad luck sometimes leads to absolute failure and there will be nothing you can do about. The downside risk of bad luck is way greater than the upside of good luck. The downside effects are non linear – it comes out of nowhere and can end you.
Do what you can to manage downside risk. Flying a plane is always a good metaphor – as long as you can land the plane and keep it intact then you can take off again. If the plane crashes and burns then you are a goner. No plane and you are dead.