I had a student with approaching your hours and he still had not gone solo, he had flown with most of the other school instructors and been told by all of them he should give up but he said that he enjoyed it and wanted to carry on - I suggested that we forget trying to get him solo and he just enjoyed his flying dual, we did this for a few hours, just throwing in a few circuits at the end of each flight - he then went solo and carried on to get his licence. As others have suggested, take the pressure off yourself for a few trips then go back to the serious flying.