When you step away from that which you are so intently focused on, you can look left and look right. What do you see? No, look longer. You will see that there are other things lingering in your sphere of influence that may be able to provide for you. We live in a give and take world, so while we give, give, give, we have a responsibility to take, too.
Take something from the offerings around you so you can feed your emotional and mental resources. No more running on empty, there is simply no reason for it, except that you won't stop giving to take, even just a little.