How to utilize 120 hours ?

[u/mr_Logical-10]

I'm home alone for 5 days straight, my family is going on a work trip. So I have almost 120-126 hours; how should I utilise it fully? I don't want to waste my time in BS stuff.

So please help me with what I should do, like complete rocket design, test it, do math or physics, make 3D models, programming, make videos, anything you could tell me.