“从小我就喜欢学表演”可以用以下几种英文表述：
I have loved learning acting since I was a child.
“have loved”表示“一直喜欢”，“since I was a child”表示“自从我小时候”，这个句子清晰地表达了从过去到现在一直喜欢学表演的意思。
Ever since I was a child, I have been fond of learning acting.
“ever since”意思是“自从”，“have been fond of”表示“一直喜欢”，强调了从小就有的喜好。
From a young age, I liked to learn acting.
“from a young age”是“从小”的常见表达，“liked to”表示“喜欢”，简单直接地传达了“从小喜欢学表演”的含义。
