It used to be really hard to be a musician close to a century ago. But it's relatively easy to start now. You have a lot of tools at your disposal. You can even make studio-quality music on your own if you want.
Starting out
There's plenty of resources you can try to start making some music. Best advice is just to practice a lot, follow song composing patterns, find good inspiration, and have fun. Also find some friends or people to share/play music with. That helps too
Here's a few music creating programs you can look into. There's plenty more, but here's a start:
