ride (on) the wave (of something)
To enjoy the advantage or benefit of a particularly successful, popular, fortunate, interesting, etc., moment or period of time. Jonathan has been riding the wave of his sister's celebrity ever since she was cast in that blockbuster film series. The popular Internet artist has ridden the wave of support from her fan base to launch an incredibly successful crowd funding campaign for a new project. Ever since I won the lottery, everybody has been really friendly to me, and I've just been riding the wave ever since!