Just remember that we are still in the bear market, so anything goes, the price could drop massively, or we can have a sideways pattern or the market from time to time will have it's rally, just like what we have seen with the current price of ETH, it has gain already in the last 2 days, same with BTC.
So if everything goes, then when the price goes down, it's a buy signal.
If the price continue to go up, then do just DCA and you will be fine specially if you are looking for long term.
when the price goes down that's when we need to make the best use of it to buy to make a profit,
that's a good suggestion and we'll see how it turns out.