Do you know someone who will just never accept help? Help is something they find hard to do, usually because they’re either too self-sufficient or proud to want to ask for help.
So why not try to be generous to the person offering you help, by saying “yes that would be lovely.” Even if we are self-sufficient or proud, it will give others who want to help the opportunity.
It’s wonderful when others want to help, as much as it is important that you’re happy for them to help. If you are going to accept offers of help, accept gracefully, or there would be just no point in accepting.