ive been trying to submit my runs for a game but there are no active mods (there only is one anyways) and i cant become a mod because my account is too young tf do i do

Message the mod on his social media, and wait for your account to be old enough.

We have the same problem here, but the mod's only social media is discord and I can't reach him because we don't share a server. Some people including me would like to become mods (and we seem to be "approved" by the community) but since the supermod is inactive (actually he did log in 2 hours ago but hasn't commented in 2 years...) it looks like nothing can be done...?

Judging by your profile, it is probably Getting Over It (Scratch edition), first things first, there are two supermods in the series, and they have to not long on for three months to be considered inactive and even then that would be the other supermod's decision to remove them which I don't think the other super is planning to. Also, as long as they are verifying runs and their mod team are verifying runs within 21 days, then they are doing fine. Uhh moderators are not required to comment or forum post on here, some people just don't like to do that a lot. If you want to be added, ask a supermod to add you. You can src dm them, also YouTube is considered a contact method so you can also contact them on there. Also, if they don't want to add you then that's fine, they don't need to add you and that is their choice as long as they are verifying runs within 21 days and verifying them correctly. If they do all become inactive then you can submit a support ticket but I don't think they are.