I don't think it's necessary to strive for that as a beginner, an n95 can't be wholly printed well by an average maker let alone a beginner(no offense!). Printing just a normal mask, you'd probably do better printing face shields. Prakashlabs(foldscope and octopi inventor/leader) is already on exploring possibilities of nano fiber production, and a slew of people are trying to convert decathlon into n95 replacement candidates. So I'd ask do you really want to start your own project as a beginner or research WIP communities?