I'd say yes, provided you complement the better mental model this course will give you with a reputable cookbook list of how to do X in practice (maybe start at https://latacora.micro.blog/2018/04/03/cryptographic-right-a...), and everything you'd like to do falls into some well-established pattern.

But then you probably shouldn't trust my opinion, because I'm not a domain expert (although I have been involved in security design together with people who are domain experts), and whatever understanding I had is probably somewhat rusty by now .