Verb
march to the beat of a different drum (third-person singular simple present marches to the beat of a different drum, present participle marching to the beat of a different drum, simple past and past participle marched to the beat of a different drum)
(idiomatic) To do things in one's own way regardless of societal norms and conventional expectations.
I'm a late bloomer. It's just a matter of how you evolve; of what your pace is. Hopefully, the older you get the more you grow. So, that has been my speed, the beat of my drum. I march to the beat of a different drum ... you'll pardon me for using this expression. Harry Dean Stanton