I was reading this topic and I suggest you to read this topic --> https://bitcointalk.org/index.php?topic=5489866.msg63840372#msg63840372 As it says DCA and smart DCA once you will read the difference between them, you can decide for yourself which scheme is better fo you to invest in BTC. It does not really matter how small an investor you are. Because your small capital might prove a lot for another member. Due to the tier 1 and tier 2 (tier's) nature of the countries. I hope you understand my point here.

You should do DCA, at the moment is the best thing to do, because doing a Lump sum (buying all at once) might not be so helpful and if you are new to the crypto sphere then you might get into some kind of FOMO or FUD or any other market-driven sentiments that can make you lose your funds by making the wrong move. Plus try to learn before investing in BTC, because learning is more important, and one more thing to invest in BTC don't join some group and hand over your funds to them for handling or other purpose, that must be idiotic (no offence).