It's good to do extensive research before investing, but if you can do research while you're accumulation Bitcoin, your research will be best on road to successful. Compared to spending time on research, you will build up your Bitcoin accumulation by observing the market and becoming a successful investor within 4-10 years.
4 - 10 years sound to be very long waiting time to gain success and profit but time flies fast and with a time length of Bitcoin market cycle is 4 years, it will be achieved very quickly.
When you are already living in the market, engaging in the market breath, you will soon recognize that one market cycle comes and finishes very quickly. You can miss many great opportunities from dip purchases, profit withdrawals, but it's your own experience and valuable lessons for your success in later market cycles.
Fortunately, there are available data and analytical reports that recap Bitcoin market history and can give you so many free insights.