I think fundamentals generally are very important, like it can help you to make better decisions when planning your trade, because imagine getting into a trade and later finding out NFP is just around the corner and you get burnt quickly, now you have lost money and you're taking out of the market.
I think the most important factor to pay attention to is the interest rate, almost all banks release new reports about this, and also it can affect a currency movement, the next one is the unemployment reports it can also affect the price, you can go to forex factory to keep up with news.