Now, imagine if not only did you hold but you kept accumulating over the course of a year or two? To me, holding is not a problem but buying more is. I wish I had $1000 USD to buy bitcoin and hold but alas I don't. This still didn't deter me from investing and buying what I could afford. It is always better to have little than nothing at all. Thankfully, I did because my money did in fact double this year.
I believe a lot of people suggest DCA, even if you have huge wealth to convert into Bitcoin. Unless you want to yolo and don't care about the risk of course. If you have a spare $1 million, buying $10k worth of Bitcoin is easier compared to people who don't make $1k monthly. It also helps you so you don't buy at the top. CMIIW.
I wonder which part of buying more is problematic for you though, since you seem to do DCA from your last 2 sentences. Is it because you can't allocate more to your monthly buys?