FL studio is the type of thing you learn alone.
I know that doesn't sound so convincing, but just fiddling around with it made me become pretty good at music production.
I can give you a boost start though.
So basically, you have 4 default sound effects, depending on which type of music you chose.
On the very left, there is a HUGE amount of sound effects you may add to your four default sound effects.
FL Studio works by creating patterns, and putting patterns together to make a song.
But what is a pattern? Let me get to that.
Say we want in the introduction... like a deep drum sound to be playing every 1/2 second.
Then after 10 seconds we want a clapping sound every 1 second while the deep drum sound continues playing.
So first we had pattern 1 (the deep drum) playing for 10 seconds, then ten seconds later we had pattern 2 (the clap) joining it as they play simultaneously.
That's what you call a pattern. No, patterns aren't just instruments...
Let me clarify that.
Say.... okay
Pattern 1: A deep drum playing at 1 beat per second
Pattern 2: A clap playing at 1 clap per 1/2 second.
Pattern 3: The SAME deep drum AND a piano. The piano is at 4 beats per second and the deep drum is 2 beats per second.
So then we have this song here:
First 20 seconds: Pattern 1
Next 20 seconds: Pattern 1 and 2 together
Next 30 seconds: Pattern 2 and 3 together.
That's the thing. What you are editing when you first open FL studio is a pattern, not a song itself.
Yeah, I learned that from fiddling around. Believe me it's better than tutorials that you won't understand.