Probably I agree with the three ways you mentioned to maintain profitability in crypto trading. Decreasing waste and conducting market research are both important to ensure you don't miss out on any potential profits.
And of course, increasing your capital can help you buy more coins and maintain regular profits in the market.
So, I think it's also important to note that there are other factors that can affect profitability in crypto trading. For example, emotions can play a big role in decision making and can lead to impulsive trades that may not be profitable in the long run.
Important to have a solid trading plan and stick to it. Additionally, it's important to stay up to date on any news or announcements in the crypto world that could affect the market.