^He said in the 1st sentence that he was a senior

I would say wrestle this year. I had this same conflict going into my senior season... I wanted to keep my gains going and I was sort of sick of wrestling. But after this year you can do whatever you want for as long as you want and you'll still have the pride of whatever you accomplish this year. If you stop now then you might be left wondering what would have happened if you'd taken advantage of that last year. Unless you're completely and totally sick of it (and even maybe then) I would just finish strong before going into more serious lifting.

Best of luck with your season!