Signs of shedding?

[Arkham]

I got my frog a few days ago now and I was just wondering... what exactly are the signs that he/she will start shedding?

My frog seems fairly happy,
the temperature in my tank is exactly the same as he/she was use to in the shop,
the substrate is a perfect, moist but not wet texture,
i mist the tank 3-4 times a day, depending on how humid it is already
and he/she eats around 4 locusts every other day,
i think he/she's settled in really well c:

also, can you tell me if I'm over feeding my frog or not? /:
he/she's around 2.5 to 3 inches so, juvenile?

Thank you for reading! 💕