Just gonna be honest with you, 30 mins isn't enough to become FLUENT in a language even with spanish.
You're gonna have to immerse yourself in the language. Listening to spanish music, watching spanish tv, news in spanish, movies, netflix, youtube videos, etc. (Even though you don't understand everything).
Make spanish a part of your daily life and I'd say you can be C1 level in maybe 3-4 years (C1 is considered fluent in a language, almost native level).
Try this program that I've been using in the last year called dreaming spanish on YouTube (Free). It's a learning tool for spanish through comprehensible input. It has improved my spanish listening TREMENDOUSLY.
I highly recommend it.
thanks for the info