Do a small research project first to get the taste of it and see how you go. One option is a masters by research; another is an honours degree (this is somethin

Do a small research project first to get the taste of it and see how you go. One option is a masters by research; another is an honours degree (this is something we have in Australia and at least in CS includes a research project, not sure about other countries). You mentioned in another comment you're about to start an undergrad degree. I'd recommend getting to know some professors early on and letting them know of your intentions; they'll be able to give you guidance and maybe give you some exposure to an existing research project their group is working on. Also a "substantial original contribution to knowledge in your field" isn't as big as it sounds. See https://matt.might.net/articles/phd-school-in-pictures/ https://matt.might.net/articles/phd-school-in-pictures/