Are they or Aren't they

Are things slowly improving in the job market or am I hoping for too much. Had 3 calls from agency's to see if I was available for work, so I took the first one and hatefully had to turn down the others. Hate turning down work but can't drive 3 lorries at the same time. Also as I'm working full time I can't do too much as I don't want to infringe on my drivers hours and get into trouble with my current employer.