As long as you're happy with your work,that's all what matters改错

As long as you're happy with your work,that's all what matters改错
As long as you're happy with your work,that's all what matters
改错

As long as you're happy with your work,that's all what matters改错
what 改为that,去掉all （语法也讲得通,但还是前者意义较好,与原文贴近）
因为：all that=what