You are not the only one asking this 
I feel this is a very legitamte thing going on with a lot of people currently.
www.elitefourum.com/t/burned-out-anyone-else-going-through-this/30403/1
www.elitefourum.com/t/how-do-you-not-get-burned-out-of-pokemon-card-collecting/29104/1
I made a video on this topic and posted it in both those threads already so I’ll avoid posting it here again.
I’d recommend taking a look at those 2 threads since they cover a lot already!