学习曲线。表示学什么技能，开头阶段都会比较难。容易受挫，觉得气馁，自信心不足。但慢慢就会越来越上手(get the hang of it)，之后就觉得很自信，自己真的有天赋(have the knack for something)

I’ve been on a steep learning curve.

The learning curve of cooking is steep.

Cooking has a steep learning curve. 

There’s always a bit of a learning curve for everything. I have faith in you. You got this gal!