if you do not deposit consistently, it will take a long time to build your portfolio. And you will fall behind your target level.
Before starting investing, you need a stable income. So that you can buy regularly or consistently. You can buy consistently by adopting the DCA method every week or month. If you have the money to buy regularly or have the ability to buy consistently but you are not consistent or consistent, then you are not a good investor. You can buy even with $ 5 using the DCA method.
Though consistency if can achieve for your investment entries and Bitcoin accumulation would be very great and helpful for your portfolio, it does not harm your portfolio and chance to succeed if you can not manage consistent accumulation like on weekly or monthly frequency.
Because consistent or non consistent accumulation, it depends on your financial status, and available investment capital. If you can not have stable and consistent income, your investment capital for entries will be affected but it will still be good for your portfolio if you can do accumulations even not consistently.
Like your initial plan is accumulate bitcoin monthly with investment capital as $200, but you fail to manage it in 3 months. 4 or 5 months later, you can invest $800 or $1,000 to Bitcoin, it will be still very good even your entry price can be different a litle bit than invest with consistent $200 DCA monthly for 4 or 5 months.