Bounce between matching brackets, or jump out to the enclosing one.
4 drills
Bounce to the partner: The cursor is on a bracket. Jump to its partner with %.
% looks ahead: The cursor is before the brackets. Press % once: it finds the next bracket on the line and jumps to that bracket's partner.
Replace a whole group with c%: The cursor is on an opening bracket. Replace the whole bracketed group, brackets included, with the name shown in the target, using c%.
Out to the enclosing bracket: Jump to the bracket that encloses the cursor: [{ or [( back to the opener, ]} or ]) forward to the closer.