Sooooooooo tired, but can't sleep

Fell asleep last night for a couple of hours, to awake feeling anxious.  Lots on my mind, worries that I cannot change, praying and trying to give it to the Lord.  On top of that I couldn't get comfortable, tossed and turned, in pain, and finally got up.  It was 1:30 am.  Now I know that I have to be up at 4 am to get around for work, but I hate just laying there in pain.  If I get up I can at least try and do something to get my mind off the pain.  Not looking forward to the day, because I know this will all catch up with me and it will be a struggle to finish the day at work.  I work with elementary students who are ACTIVE to say the least.  This should be interesting.  Lord, please give me strength, to be loving and kind, and wisdom to give to these children what they need at the time.  Also undergird me when the fibrofog tries to take over and leave my brain dead.  Thank you Jesus!