Good As Gold Shop

Got it 
Here’s a polished version of your slogan ideas:

Brand Name: Good As Gold Shop
Tagline Options:

1. Good Sht — Be Yourself*

2. Good As Gold, Good Vibes Only

3. Be Bold. Be Yourself. Be Gold.

4. Authenticity Never Goes Out of Style

If you want to keep the raw, edgy feel of “Good Sht ~ Be Yourself”* but make it more versatile for marketing, I’d recommend using it as a secondary slogan (for social media, ads, merch), while keeping something cleaner like “Be Yourself. Be Gold.” as the primary tagline for wider audiences.