頑張ってるのになかなか成果につながらないときってとても辛い。
これまでのやり方に疑問を持って、努力の方法を変えてみるのも悪くないよ。

How to make an effort
It’s very hard when you are working hard but it doesn’t lead to results. It is not a bad idea to question the way you have been doing things and try to change the way you are trying.