I personally don't feel sorry for any of the sats I've spent over the years, no matter what the price was then compared to today. It is simply wrong thinking that leads nowhere. Even if someone has an income exclusively in BTC and that is his only income, does that prevent him from saving at least 5-10% of that BTC every month?
This.
Everyone has to realize that we can't go back in time and think of all of the sats/bitcoins that we've spent for anything that we've got during that time, whether they're important or not.
We can always save for the upcoming years whether you aim for the bull run or just for another time for cashing out. Remember that Bitcoin should be meant to be used by us but it just evolved the use case of it which is common now as an asset.