How long would it take to learn the keyboard? IDK, that depends on you. Me personally, I started playin piano by ear b4 I was even in grade school. But can I play piano/Keys, I don't consider myself a piano player. I'm a musician. I can play piano, drums, percussion, clarinet, trumpet, guitar, strings, and my main instrument is the sax. <---- That's my shit right there, but I can pretty much competently play any musical instrument to some degree. Even if I've never played it b4. Some people have that gift, some do not.
That's why I mentioned learning to play music. The basics of musicianship and fundamentals apply to all instruments. It's like the ground rules. We just had a thread on that, hold on a sec, I'll dig it up...
https://www.illmuzik.com/forums/showthread.php?t=20049
But you sound dedicated. Just get familiar. Things are a little different nowadays with software, but they all generally do the same thing. Just different interfaces.
Don't flame me ya'll. That was a "very" general statement.
You have Fl studio. Find as many video and written tutorials as you can about it, and just sponge it all up. Listen and try to recreate the songs/producers you like.
There's lot's of good info here, lot's of very intelligent people, and like Daclion said, don't burn ya'self out. There's life outside that computer/studio. LOL Just try to balance it all. And try to search b4 askin a question.
Here's some more stuff:
https://www.illmuzik.com/forums/showthread.php?t=13185
Keep us posted on your progress, and if we can help, that's what we're here for.
P.S. Everyday I wonder why I was a computer science major and not a music major. Ok I did digress so I must ask, did your original question get answered?