someone talk me through getting instagram followers faster?

Faster usually means one of two things that backfire: bought followers or follow/unfollow. Both leave you with an audience that never sees or engages with your posts, and the account gets shown to fewer people because of it. The quickest legit route I've seen is borrowing someone else's audience - a collab post, a guest takeover, a giveaway with a related account. Then make sure your profile makes it obvious within five seconds what people get by following, because that's where most of those visitors are won or lost.