Looking to go deeper / prolong my dive time

[Rhone Man]

Think of your ability to concentrate as a 1 dollar bill. In the beginning or recreational diving yo might be spending 90 cents just setting your buoyancy. This means you have 10 cents left for diving, emergencies and anything else. As you gain experience, this takes less and less to do these skills and you have more ability to perform tasks without becoming overtasked.

I like that analogy.