Wow, you must have worked your azz off on that paint! The red looks great!
For the stripes, I would consult an expert. My guess would be that if you buff them off, what's underneath won't look good, but it might not be too $$ to repaint them after the old paint is off.
For the carpet glue, I'd try rubbing alcohol, and if that doesn't work, lemon oil (it's stronger but less easy to get). Those are both for if it is sticky. If it is dry and crusty, try one of those razor-blade glass scrapers. Or a two-handed paint scraper. WEAR A MASK. Old glue often has asbestos or other bad stuff in it. Use a damp dropcloth, spray with a water bottle, etc. Maybe get it tested -- your local paint or lino store can probably tell you where.
