Even if it's just starting from now, ~~~ 이제부터가(from now ) 시작이지만(even if it's just starting)

이제부터가 시작이지만 = although we're just starting out / although it is only a start = 이제(now)부터(from)가 시작(a start)이지만(although it is) As you can see, it is not a full sentence but just an adverbial clause.