Going by this method, if you invest $1 per day for 5 years, you will be left with a profit of $20,405 (on investment of $1,858).
I am someone who had the fortune of purchasing Bitcoin in its infancy. When I purchased BTC, the exchange rate was around $10 per coin (by the end of 2012). If I had held on to my investment, then my $150 investment could have grown to $150,000.
What I am trying to point out here is that you need to invest in Bitcoin as soon as you can, using whatever amount that you can afford. The exchange rates are going to rise with every passing day, and the daily investment method will not be very effective in that case.
Practicality-wise, I don't think it is really a nice strategy to invest in Bitcoin on a daily basis. Yes, it is profitable. Of course, because Bitcoin has always been consistently rising in the longer term, especially if you started investing in it when the price was less than 50$ per BTC. But, as for me, I'd prefer to save up that $1 daily while monitoring the price of Bitcoin. That saving accumulates over time and by the time the price of BTC dips I would buy and leave it whether the price dips even more or rise.
You are very lucky you got to know Bitcoin very early. I came in crypto a bit late. I had my first Bitcoins in 2016. It was cheap compared to its current price but at that time it was already considered expensive because it was compared to its prices years earlier. It was priced at hundreds of USD but instead of acquiring much, I sold them little by little and started buying back as the price is also rising. Who would have thought that BTC would even hit ~$20,000? But I have now learned my lessons and developed stronger hands.