INVITE-ONLY IS MAKING ME MAD (& qs)

i am a new user and am actively working on making my friends join this platform cause its amazing and not mind-draining like other social media platform but i CAN ONLY DO THAT IF IM ALLOWED 😭😭 

thankfully one of my friends joined before the update so she was able to get in without an invite.

but if i wanna spread this to more people in my friend group then 3 INVITES ARE NOT FRICKING ENOUGH. I already used up 2 and it says only 1 invite left. 

The only possible thing i can do now is ask my joined friends to generate invites for the others but then again it gets used up pretty fast ;-;

1. How long will this invite-only thing exist?

2. After I use up all 3 will they get regenerated or am i just doomed with 0 invites till the rest of my time on spacehey?