Helping is good. Rescuing the same person every single week is a pattern.

Help is an event and rescue is a system. One is you stepping in; the other is a weekly arrangement in which the same problem never has to get solved, because the solution is you. That is not a flaw in either of you. It is what happens when a reliable person stands beside a recurring crisis long enough.

Count the last month honestly. If it has been every week, change the shape of the help rather than refusing it: sit with them while they do the thing instead of doing it for them. That still counts as kindness, and it leaves them something usable.