Question

that’s 是不是和so be it差不多?

Answer 1

不太一样的.

That's it相当于中文的,就这样了

so be it,相当于中文的,随便你了,爱怎么着怎么着把,我不管了了意思

例子：

Here you just need to put it into the knot.That's it.

If that's the way you are gonna be,so be it.