Since you are using a good strategy to buy bitcoins, I think it will be beneficial for you to buy. But you must keep in mind that investing should never be short-term thinking but for the long-term you should invest and hold the fraction of bitcoins you will have. Since you are a working person, and you are running the household expenses from your monthly salary, the amount you will invest later is small, but it is a good move for you. Since you regret investing this amount every month and maybe a little more next month, this buying style is not bad either. If you invest using DCA it will de-risk you a lot, but you should always analyze the market, and it will be good for you. Also, you should know before investing that you only invest the amount of money you can afford to lose.