Well sound production school may be a good for you it doesn't mean its a must have.
you have many options and the bast way you can learn to produce music is work work work. !
learn music theory its very important factor in good music production,
and if you don't have some
basic understanding of music theory it will be very difecult to go to the next level. !
after this you need to deside what program to learn it can be logic studio,protools,cubase !
let me tell you a secret it dos not meter what program to learn.
wean you will understand one program you can easily work in any program you now.
you need to now the basic stuff after that its not problem to learn another program.
what relly mater is the understanding you have in mixing,recording,composing and not the program you work on.
you have many resarch in the internet all you relay need is time and a passion to music !!!
it will take you about 2-4 years to start to see the big picture and to anderstend what you are dooing its all conected music tehory,mixing,recording.... the moust importent thing is don't give up keep trying and practis practis !!!