Help identify problem with lawn

[tlimerick]

Help please, my grass was laid down about 2 months ago. I think it was under-watered then over-watered and more fertilizer added. I found a little grub in the soil where I pulled it back and a coin size web, maybe fungus? Also, some mushrooms keep popping up but not in circles. Is my grass getting dead spots and turning a yellow orange from water stress or from bugs or fungus?
Thanks

[BIGDADDY13]

Looks to me that their is a bunch of grass that has been cut that was too long to be cut? Hard to tell from the pics though. Could be a fungus possibly?

[Masbustelo]

Have you done a soil test? To me the entire lawn shows a malaise indicative of soil unbalances. This can lead to the problems you are observing.

[tlimerick]

No, I haven't. Thank you, air will do that first before anything else.

[andy10917]

If you want us to interpret the test results, make sure to read and follow the "How to Submit a Soil Test for Interpretation at the top of the Soil Forum.