The first breath is the strange bit. Your body is fairly sure this is a mistake. Give it a minute and it stops complaining, and then you are floating about underwater wondering why you waited so long.
Diving has a reputation for being difficult and a bit exclusive. It is neither. A Discover Scuba session has you breathing underwater in a pool or a calm bay on your first try, no experience required. The skill worth learning is buoyancy, and it comes from your breathing, not your fins. Get that sorted and an Open Water qualification opens up dive sites, and dive buddies, more or less everywhere.
Whatever your level, the instructors on adventuro keep you calm and sort out the rest. Everyone underwater today was a nervous beginner once. Most will happily admit it.