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Yet I can assure you that Fear is what is holding most of the investors who are yet to invest, back to investing in Bitcoin, they believe one day it will crash just as they've been believing since Bitcoin @10k

I hope they know they facked up when it hit the recent 100k...
That is why you have to take risks to invest and believe in Bitcoin, have you ever completed any work in your life without taking risks? I know that no work can be completed without taking risks. Just as all investors who are afraid to invest in Bitcoin will refrain from investing even if Bitcoin comes at a very low price, but those who are brave and risk-takers will definitely invest in Bitcoin at any moment if they have money.
Investing in Bitcoin requires courage and patience, which you can capitalize on to survive the investment, because in the past, when the price of Bitcoin was low, fearful investors were never able to invest, and they are only regretting it now.
It sounds problematic to be describing bitcoin as taking risk, when you are likely taking way more risk if you are not investing into bitcoin. Sure you have to learn things in bitcoin, and sure you have to figure out how to take action, including finding out how to source your coins and also figuring out how much of your discretionary income you are going to use to buy bitcoin on a weekly basis or whatever might be your investing timeline.
Bitcoin is risky, no one is certain what will happen in the future if it will keep growing or not so investing and not investing in Bitcoin are risky, when you don't invest now and later on in the future Bitcoin grew to a million you will regret not investing and if you invest now and later on in the future Bitcoin start dropping in price and value you will regret investing in it.
Now among this two which is more risky?
The most risky one is not investing, the reason why I said so is because the money you use to accumulate Bitcoin is actually your Discretionary income and your Discretionary income is the portion of your income that can be spent on non-essential items, such as wants, rather than necessities like food, clothing, mortgage, electric bill, water etc. Which means you could use your Discretionary income for fun for example going to parties just like some people do but you decide to invest part of that discretionary income on accumulating Bitcoin which may help you grow financially in the future.
Part of that money you are taking out week or monthly from your Discretionary income to accumulate Bitcoin is something that won't affect you financially so is less risky than not using it to accumulate Bitcoin.