Try LittleNavMap. I pause before taxiing to the runway and zoom in on my location. From there, I follow the ATC taxi instructions by locating the taxiways and following them on LNM. Works almost every time. I also pause after exiting the runway following landing, then do the same with ATC ground instructions to Parking. IRL, you’d have already studied the charts and had a reasonable idea where you are and where the taxiways are 
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