To answer your question, which is better, investing or trading , let's first try to answer another question. How many bitcoin millionaires do we know among investors and traders? It seems to me that there are more millionaires among investors. Winklevoss, Tim Draper, K. Wright, etc. - they all made millions/billions on investments in bitcoin. This is still only a small part of people who have earned decently in crypto market.
So it turns out that the answer to your question is obvious.
Trading is exhausting and with one who follows the path of these millionaires and billionaires. We're getting the idea on how they're doing it for their own gain and that's to keep investing.
Investing in bitcoin is much better than to put yourself at risk in trading if you're not really good. But no one can stop a trader if he's making a living from it and if you're a trader and an investor at the same time, you're determined to be rich.