College student budget? IKEA is your friend. Or, for any budget when it comes to good quality drapery panels, especially their linen and velvet ones. You can't beat their prices, and the quality for those items is excellent. You would need to look elsewhere for drapery hardware, however, as they don't offer comparable quality for rods, brackets, etc.

I wouldn't want to cover up that lovely new trim either. Would inside mount blinds interfere with the window mechanism? Looks like that might be an issue? I might just get a light gauze fabric, or sheer curtain, cut & hem it to fit, and hang with a pressure rod just at the top of the window. Add a bit of cording or ribbon at the top corners - use that to pull the curtain open and closed as needed. It won't block light a lot, but will diffuse it to reduce glare and heat from setting sun

If considering replacing completely thought the link below might be helpful. Have you considered placing the changing table on the wall on left, if you home is located where weather gets cold or damp. https://mini-magazine.com/nursery-window-treatments/

I think combining voile curtains with regular curtains can be a great idea! It adds versatility to your window treatments and allows you to control privacy and light throughout the day. In our house, we have voile curtains in almost every room. They provide a nice touch of privacy while still allowing natural light to filter in. And guess what? We recently upgraded to blackout curtains as well, and let me tell you, it's been a game-changer! Finally, I can enjoy a peaceful and undisturbed sleep. If you're looking for curtain options, I suggest checking out direct-fabrics. They have a wide range of choices that might suit your needs.