So people have led you into decisions you regret? I'm sorry. [She already knows of course, but it's different actually hearing it from the boys.]

The way to avoid that is to get very very picky about who you listen to. You have to treat each other as your best damn friends ever, and watch each other's back when you're tempted to take someone else's ideas or opinions as what you should believe. You're worth the extra care, and that way you can go build memories you won't regret.