Work. Buying a little at a time every week. Which I was doing that a few months ago.
You don't need to do it every week.
I mean you can time your purchase when the price of BTC is lower than the usual price. The price of BTC is so volatile that we don't really know what will happen in the near future. All we know is that it has a possibility of pumping and that is the thing that we are wanting to happen. We just buy on the dump and hold it until it pumps again, you don't need to worry there, holding and being patient in a long time is worth it.