based on what it says, you start your investment since the bitcoin price is still at $40k. for now, you've got the advantage comrade. although the investment is not that big, but little by little, it will be very much in the future, especially if the price of bitcoin tends to rise to the price of $100k.
just curious, how long are you going to make this investment every week? Is there a timeframe that you prepare until you stop at one point? honestly, it's inspiring, because a lot of people say that bitcoin is only for the rich. Well, now we can see how to invest well by having minimal capital. we can do that little by little.
what the OP did was very good indeed. it shows that anyone from any background can invest in such expensive bitcoins.
I also do the same system for my Gold savings. every month I set aside money that I will buy gold. but I do not determine the nominal consistently. The OP did better planning with his bitcoins.
I think for the time frame, the OP should make a separate target for him to achieve. because to invest in bitcoin of course the most disturbing is the price that pumps. if the price goes down, I'm excited to get in. but when the price goes up, it will be a test for our psychology.