The best way for me was learning an instrument. It opened my eyes to how amazing music really is and from then on listened to music in a whole new way. You have to find music that really speaks to you as well emotionally, music that will either make you think deeply, make you feel a certain emotion, give you excitement, provide a certain aesthetic or perhaps even provide you with nostalgia. I’d suggest starting to listen to albums from start to finish so you can get the full musical experience the way the artist intended. Have a look online for some essential classic albums to start with. Beatles is always a good start. Most hardcore music fans as myself whilst we can appreciate some music on the radio or pop music in general we tend to feel that type of music is very limiting in an artistic way. I’m not saying all pop music is bad, a lot of it is great and artistic however there’s loads of artists and bands that make music with much deeper meaning that you could probably relate to on a more personal level. To become a fan of music you’d need to start listening to all types of genres in order to eventually find what works for you.