Are you so eager to be loved by everybody that you are complying with their demands to the point that you are completely drained?  Burnout and weariness is often because we lack discernment when it comes to setting boundaries and learning to say the word "NO".
 
If you don't follow the Lord's rules for doing His work...as an athlete does when he is in a competition, you will be disqualified.  Not every problem you are having is spiritual, some are physical...you might just be tired and need some time to rest!  You cannot blame the devil for the things that are your fault.  If you don't like to be pressured by people, let them know and set some boundaries.
 
Today take the responsibility for your life!  You are the one who makes the schedule...set priorities and put first things first.  Jesus is our example; even He made time for rest and renewal.  Put your life under the guidance of the Holy Spirit and don't expect everybody to understand when you set boundaries.  Proverbs 17:17 says, "a friend loves at all times", not just when you comply with their wishes.  So if saying no costs you the friendship, it wasn't a healthy relationship to start with!