can you master multiple areas?

so im starting at environment where i have multiple projects, F5(LTM WAF) firepower ASA ACI and ISE( i will not be asked to touch voice but i will love to learn it too), should i just learn the administration skills for each of them and go deep on the most important technology (the technology that doesn't have experts handling it), or should i go wild and try to go as deep as i can get in all of these? if so should i get certified in them? i had been advised by colleagues and some seniors to not try master a multiple areas because you will fail and waste your time and career just stick with one or two and know the bear minimum on the rest, I'm really passionate about networking but i don't want to make career mistake here