When this situation arises, I set boundaries according to the needs requested and the time and energy I have available.

I find that if I first make time for myself--rest and solace from God, then I'm better prepared to meet the needs of the day--especially when confronted with the immediate needs of others.

I also tell the person or persons who needs help what I can do for them. I also relate to them what I cannot do and give them references for the help they require.