LCD1602 won't fit in breadboard (Elegoo Super Starter Kit UNO R3)

Glad you finally got it inserted! The real test will be does it make good contact, allowing the lcd to work correctly.

ysthakur:
It's also rather tight and nearly impossible to get out, but that'll probably get better later.

Careful use of a fairly large blade screwdriver prising successive points along the length of the edge of the module where the pins are, and starting again from the first end in small increments until it comes loose.