Anxiety doesn't necessarily cause concentration problems as its own symptom. In fact, it could be argued that anxiety actually improves concentration. Anxiety is the activation of your fight or flight system, which is meant to keep you safe from harm by ensuring you're running away or fighting without distraction.
The first set up is a standard 20-25 pound test rig (depending on the size of the tuna) with a size 1 to 2/0 hook depending on bait size and the size of the tuna. Fluorocarbon leader can be super effective if the fish are touchy (biting infrequently). This set up will be the primary bait fishing set up.
Tuna range in weight from 10 lb (4.5 kg) skipjacks to bluefins that weigh as much as 2,000 lb (907 kg). They are popular game fish because they fight fiercely when hooked. There are nearly 50 species of tuna found in all tropical and temperate oceans. Sport fisherman generally fish for tuna using a rod and reel.