Here, I used the idiom " I came out of my shell" .

在这里，我使用了习语“我敞开心扉”。

It took my like senior year to really come out of my shell.

我花了大四的时间才真正脱颖而出。

My new year's resolution was to come out of my shell, but 2020 had other plans.

我的新年决心是脱壳，但 2020 年还有其他计划。