Okay, there are two ways to do it: one way that I'm comfortable with doing, and one that most famous artists do. Really, it delves down to ease or comfort.
My way: make a concept before you make a song. Thinking of how you want the songs to sound or how you want the story or overall visual to pan out doesn't mean shit if you don't have a concept to wrap around it. With your concept, you can delve deeper into your music and build off of yourself making yourself a better producer in the process.
Or
the other way: listen to the different genres you usually listen to, then listen to songs from your genre and build your songs off of the sounds you hear. In a way, this sounds like plagiarism, but it's not. It's simply making your music sound much more commercial and overall likable. At the end, your music will sound less cohesive when put together, but you'll most likely have many songs to choose from rather than only a few for a section of your story.
Again, like I said, it delves down to rather you want to make it easier on yourself or emotionally comfortable for yourself. All-in-all, this is your chance to debut your sound and to debut yourself. So, whichever you feel is the best way, I think it's either of the two that could help you make that amazing album!
BTW, where can I listen to some of your stuff?!