[mothered]

I have my parents' and also my girlfriend's address but they wouldn't accept to make a fake signature and I don't want to involved them in the SE so it's rather complicated.

Agreed.

It will definitely complicate matters, which you'd want to avoid at all costs.

Otherwise I can put my old address which is not far from my current one and go wait for the delivery man there until he arrives. And when je arrives i tell him I made a mistake about the adresses. What do you think of this strategy?

Given you're DNA'ing It with a fake signature, why not accept the package without saying anything and leave It at that?

(But I already made an order that I sent to my main address, won't it look suspicious to the reseller if I send a package to another address and it never arrives?)

It's no fault of your own If It doesn't arrive.

You can have packages delivered wherever you like, hence It won't raise suspicion If It happens to get lost.