Funny
10 years ago I was thinking like what you do now
I never get a single fish everywhere I go and everyone else gets plenty, one thing I learned fishing need patience and be positive and don't give up, I eventually end up getting big fish, smallest I got is around 1.5kg
Pre plan your fishing trip
Try Google what type of fish is there before you go and what would be the best bait, read some books while you fishing if you feel bored
Using your drone for fishing if you have a safe payload release there is nothing to be worried but just watch your line so it's not too loose and get tangled with the props
Try it in open field few times and once you're confident you can bring it over the water.
All the best