Investment has to start with good understanding about Bitcoin fundamentally, as well as knowing about its risk and chance to get profit. All things need to be based and learned from Bitcoin white paper, available learning resources for beginners, and historic price and ROI of Bitcoin.

After have good knowledge about Bitcoin, it's time to find a good investment strategy, and among many strategies, Dollar Cost Averaging is a best one for almost all investors.
https://dcabtc.com/
https://costavg.com/
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I doubt that any of the things you mentioned need to be learned prior to getting started investing into bitcoin.  A person can start investing into bitcoin and figure out the various topics that you mentioned as they are investing, whether they start with $10 per week or some other amount that they consider as a reasonable way to get started, and so it seems to me that getting started is one of the main things, and  all you need to know is whether you have some discretionary income, like $10 and then you can get started and figure out the details as you go, and the more you learn, the more likely that you would be ready, willing and/or able to increase your weekly investment amount and/or to make any other adjustments based on ongoing learning.
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This is quite understandable and considerd as the best advice perhaps Rome was not built in a day, a typical example of life reproduction stages can be a very good example, from fertilization process to an adult we can see that there is a necessity of one stage to occur before the others, getting started should be a priority when we have the disposable income available, and to crown it all the idea and concept of the DCA strategy should be taken advantage as an incentive towards the long term goals and objectives.