Need some help for a science project.

Falchion:
I need all the help I can get.

Yeah but not to the extent where you don't learn anything.....

Get one servo working, clenching a finger using sweep as I suggested, with suitable changes for the range of movement and the delay.

Then tie another string to another servo.... change the program to have more than on servo attached and double up the part that does the movement of say myservo1 and myservo2 (or finger1 and thumb or whatever) and get two fingers or knuckles or whatever clenching.

Get each piece working as you go, and save old versions of sketches so you can backtrack to the last version that worked if you make a screwup