1. Have knowledge about Bitcoin.
No rush, take your time learn about Bitcoin, how e they work en underlying technology ( Blockchain), the risk and rewards way they inside also learn about wallet ( where them they store Bitcoin) where and how you fit exchange them, the measure way you fit take secure your wallet.
Having knowledge about bitcoin is a good idea bit you can't learn it all before you start your investment else you could miss a lot of chance because bitcoin can be so unpredictable so I will say Having basic knowledge about bitcoin before investment is a good idea
Learning about wallet could be a basic knowledgebut learning about how blockchainworks entirely could be challengingfor a newbie although there'rebasic aspect that can be easily grasp, however if someone is trying to invest in Bitcoin then longterm investment should be focused on without any intension to exchange it soon.
Once he/she is already in the investment , then learning about the technical and longterm learnings can be done with ease
For me if you are really really interested in making or saving up your money as Bitcoin investment then there is probably just no complicated thing involved, so just know the basis and not much tech stuffs because what's even important is actually the zeal or learning seriousness towards what you aim at achieve by saving your money in Bitcoin.