It's important to have a good balance between your work and personal life, but I also think it's necessary to experience pushing yourself to your limits regarding your work life.
この場合、次のような言い方ができますよ。
ーIt's important to have a good balance between your work and personal life, but I also think it's necessary to experience pushing yourself to your limits regarding your work life.
「仕事と私生活の良いバランスを保つことは大切だが、仕事で限界を経験することもまた必要だと思う」
It's important to ... で「…することが大切である」
to have a good balance between A and B「AとBの良いバランスを保つ」
ご参考まで！
カナダ 
