Even with your LE5 version’s included sounds, if you got a small MIDI controller keyboard - something like a Korg Microkey 37 - it would open up a whole new world to you, I have a feeling.
And even without a controller, you can always create a simple Instrument Track and “draw” in whatever you want.
It’s a wide open world. Sounds like you are going to have some fun 
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Good luck and happy music making!