Long-term investment is the wiser choice. With it, you won't have to worry about complex analyses like day traders who must always be ready in front of their computers, gazing at candlestick charts. Long-term investment can be done at any time; you simply buy and then almost forget about it, so your emotions don't get mixed up when bearish prices come early. I am very confident that, in the end, the price of BTC will rise as well.
In long-term investments, you will have more time to focus on other productive matters. This way, your income will come from various sources, making you wealthier more quickly.
As long as Bitcoin is not an instant money generator, waiting is the most appropriate approach. There's no need to rush for quick profits because network growth and wider adoption also take time. Fundamentally, Bitcoin holds great promise for the future.