I'm not so much worried about what I'll do when it reaches $1 million as what I'll be doing while the price keeps going up. Also when there are crashes. Even if it reached that figure in 4 or 5 years, I wouldn't be able to retire, because I don't have a lot of money in bitcoin and I'm going to sell partially when some milestones are reached, so I remain invested while keeping increasing wealth in bitcoin. That and my personal wealth management in general should leave me in a comfortable position.

It will never hit $1m in the future. That is what you would expect an 8 yo kid to ask.

You would really be able to read up lots of post and perception towards this topic.

https://bt.irlbtc.com/view/5162485.0
https://bt.irlbtc.com/view/5167734.20
https://bt.irlbtc.com/view/5178222.0
https://bt.irlbtc.com/view/5162485.20

Back to question of what would i do if it hits 1m, then that wont really matter much since im not really holding much off some bitcoin.

Simply, if now I know that BTC will exactly hit $1m in the future, I will buy more right now and hold it for several periods. However, we do not know when it will come. So, I personally just focus on the short investment for right now. taking small profits from the market price and continue to hold little by little for a long term inevstment

I'm not sure if the 1M is realistic or not but the moment when I bought bitcoin at 5K last time, I bought it to sell above 500K with X100 profit or even more. Depending on you and how much you do really believe in bitcoin you can have different price goals. I remember the moment when the price was bellow 500usd for each bitcoin people never could think of buying bitcoin at 30K after just a few years. And now this can even pass this price level easily.   

I don't think that I will ever get rid of all my coins. If bitcoin ever hits 1m USD I'll be rich and it won't matter if I sell 1 or 10 bitcoins. I'll always have enough money to live by so I don't see a reason not to hold some bitcoins as backup, the way you keep money in any other long term investments. I'm planning to sell only enough to live by and depending on the value of bitcoin it will be a cheap or moderately expensive life

In my opinion, if bitcoin ends up reaching $ 1 million, of course this is a full point for us. not only that, because based on the sufficient profits we will likely sell as a whole. although this still sounds like wishful thinking. believe me nothing is impossible in the world of bitcoin, i hope everyone feels the benefits without exception. because all bitcoin or altcoins users have the right to benefit greatly from this

Couldn't agree more with you, mate. It's always best to diversify your investment in order to reduce risks of loss as much as possible. A price as high a $1m USD should make many early adopters wealthy. If you're smart, you'd cash out some portion of your holdings for profit while keeping the rest as a long-term investment. You can even make greater returns if you take advantage of Bitcoin's price volatility. As well as you do, I believe that Bitcoin's mainstream adoption will be huge once it reaches a price of $1m per coin. My guess is that fees will be ridiculously high if everything stays the same. People will be forced to use the Lightning Network if they want to use Bitcoin for daily payments. For moving large amounts of money, on-chain transactions will be the most viable option for achieving security/reliability.

Nonetheless, Bitcoin is still far away from reaching a price of $1m per coin. It could take a couple of years, if not decades, before it becomes a reality. We should focus on Bitcoin's utility instead of speculating its future price. 1 Bitcoin will always be equal to 1 Bitcoin no matter what. With a price of $1m per coin, people will be spending "satoshis" instead of "milibits" of a Bitcoin. Whatever you do with your profit, it's your decision. Nobody can force your to "hodl" or sell at any point in time. Some people will use the money earned to donate it to a charity of their choice, while others will cash out for profit. "Hodling" your Bitcoin forever is not a wise decision as you could miss an opportunity of a lifetime to make some extra cash. It's always good to spend a small portion of your holdings every once in a while in order to secure profits. Just my opinion

If it reaches 1 million dollars in the future, I will invest half of my money in Bitcoin again and half by buying a house and building an apartment for me to have a passive income, nowadays we need to have an income passively because we didn't know what will happen to the future, just like this pandemic, we did not expect for this to happen many people lost their jobs.

Good question.
I guess the time to prepare to those price levels is now, as I am deeply not prepared to see 40k already! I mean that is high compared to when I first heard of bitcoin (2011). I suggest everybody to look at these saving plan to set a good strategy and get prepared.
https://jlopp.github.io/bitcoin-savings-plan/