努力すれば友情がこんなに早く育つなんてすごいよね

Meaning: it’s amazing how quickly friendships can grow if you put in the effort

努力: effort, strive, endeavor, great effort, diligence, exertion
する: to, make, to do, to make, to perform, to conduct
ば: if, by, should, when
友情: friendship, camaraderie, fellowship
が: is, there, but, ga, will, however
こんな: such, like this, this kind of
に: in, to, on, at, into, upon
早い: early, fast, quick, premature
育つ: grow, grew up, raise
なんて: how, what, like
すごい: amazing, great, awesome, incredible, crucial, tremendous, ghastly, frightful, terrific
よ: the, yo, ll
ね: ne, right, isn't it, don't you think, huh, aren't you