cutechemist is entirely correct in that if you're at the start of your first year the best thing you can do is to make your own resources on a software like Anki or Notion -- if you want to use things like Snap you can get their revision mindmaps for free and then just convert them into a digital flashcard system which will allow you to actively recall information over a spaced period of time; just ensure you're not falling into the trap of memorising information as opposed to actually understanding it, especially with things like Biology.