New Fisherman? Help??

I moved to the Jacksonville Fl a couple of years ago and just got my first saltwater/Freashwater fishing license.

I bought a used Mitchell Riptide rod/rell combo and want to do some fishing in the St. Johns river and surronding salwater area.

Any idea on how to get started?

Rig?
Bait?

I’ll mostly be fishing from a pier or from the shore.

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