That's the thing I'm struggling with, I actually want to put in more money. But I just can't afford to, I want to maximize on the buying opportunities but I know that's the FOMO creeping in, and I'll just have to stay patient.
Put what you can afford to invest. You done your best so far, because many DCA strategies that most people do stop in the middle of the road because of unstable monthly income. As for cultivating fiat first in order to take more number of altcoins like Ethereum is also a good step as long as you take advantage of the bear market at the right time. Because the DCA concept will not only focus on bear markets, each month must have a budget to allocate. So if that becomes your decision in the long term then do it as best you can. But if I may, budget primarily in Bitcoin to stay on the train.