prices are lower. Starting a dca say 100 usd a week for a year would be an okay move. Doing 100 usd a week for 2 years would be better. As long as you Just stack them and hold them.
Especially now, DCA is the most appropriate pattern to use. A decline can occur at any time and continue if we look at the BTC price chart, although it's not considered particularly necessary. But for me, it's quite helpful. Adding a small amount, even if I have good moment to get a really low price in the past two or five days.
Investing in Bitcoin requires a level of psychological skill in relation to risk management as the system is volatile it can fluctuate anytime. Everyone has their own choice, their own money, and their own level of risk they can handle so if you can't handle such level of volatility then investing in Bitcoin isn't for you.
The risk management that should be implemented in Bitcoin accumulation is making sure you invest from your discretionary income and building out backup funds like emergency funds and other variances alongside your accumulation of Bitcoin. If you're troubled about volatility, then there's DCA strategy which enables you to buy both the highs and the lows thereby smoothening the effect of volatility on your investment.
You are also advised to be as aggressive as you can in Bitcoin accumulation without overdoing it (like using money meant for your expenses to buy Bitcoin) so that you don't introduce a risk for yourself while investing into Bitcoin and as such not be able to sustain your investment for long.
The psychological skill you'll need is remaining disciplined, consistent and committed to your purchases amidst market fluctuations, paying deaf ears to the markets and focusing on reaching your accumulation target faster within your holding period and better still reaching a level of over accumulation still within your holding period.