Hey yeah, sorry you had a rough first day. We’ve got a real problem with people creating a new account, shoving five-ten posts, and then deleting your account. Fedi does get touchy about ads; I can’t see the post so I don’t really know how ad-y it was, but generally speaking self-promotion is accepted. You’re in the right place. In order, the fediverse apps you’re looking for are: Pixelfed, Friendica, Mastodon, dunno, dunno, Funkwhale, PeerTube, you don’t want this one on fedi.