there could be some regrets about not having had invested more, but the balance likely also does have to do with being able to stick with the investment.
One thing we always take record at time of maturity (lasted period of investment) we might think we are over investing due to how other needs that surrounds us at the initial stage of investment might think we can't manage the situation at hand, what I also understand during investment is that we may finds it very difficult to increase our investment plan just as you said either by weekly or monthly but it should be in a way that we don't over stressed ourselves knowing too well that we can't go above our capacity or income we received. Maybe thinking how I wish their works allows them to earn higher they would have increased their investment plan maybe to make huge return or to increase profits before their expected date of harvest.
If we invest excessively, our portfolio increases but spending every month will be burdened because a lot of money goes out to bitcoin while other needs are cut because we want to increase investment every week or month, of course this will be heavy and unbalanced people will definitely find it difficult to do this.
One of them must balance between the two for bitcoin spending for 1 month - one month's expenses then the more increased then it is needed for the budget, there is also a desire for higher income it must find another source of income because if you only rely on a monthly salary it is clear that it will not be enough, and one other source will ease your burden for expenses every month while investment will continue.