Good news is you are bass fisherman, so that will serve you well. Patterns at the coast are more subtle but way less complicated when dialing in the fish. I would suggest you do inshore fishing, look for area accessible for wade fishing. Similar to bass fishing, spending a few bucks on a map should help you narrow down some spots you can wade. Not familiar with Galveston or I would give you some locations to wade.
-Popping cork with live shrimp is a tried and true combo, you can cover a lot of water with it. You can also attach Gulp shrimps if you want to avoid live bait. I prefer the Gulp Mantis Shrimp, new penny chartreuse. (you tube it)
-Top water early can be very effective. I use She Dogs in Bone/chrome, hot pink/chrome, chartreuse chrome. Super spook Jr, same colors.
-Saltwater Assassin, I like single tail style, rig them with a jig head, plum/Chartreuse is legendary, I like chicken on a chain as well.
-H20 Thumpin Mullet same colors as the Assassins.
Find the bait Look for jumping bait, even if it is huge bait. Look for slicks, look for birds sitting on the water, standing in the water, hunting near the waters edge, birds follow bait. You should as well.