Yes, you can't touch your wardrobe at the start, though I don't remember if you need fashion unlocked or an actual rank in it to mess with stuff. And you don't get beginner's luck if the skill is still locked iirc. So basically you need to just keep checking yourself out in the mirror. It's not like it's impossibly difficult to do so, it just makes it a bit difficult to raise fashion early.
Basically, it's just difficult to do much with Becky at the start. I think you're probably better off waiting until you've raised the three exp gaining skills before messing with her too much unless you just happen to build up the right topics. Which does happen.
Also, someone mentioned that drug dealer is a big money maker. Is that only with Unhealthy embraced so you can load up on pink pills? The profit margin actually seems pretty bad. I mean, maybe it improves once you've maxed out aggression and disorder and stuff but by that point why would you even need more money?