A practical Black repertoire needs a plan for different first moves and an understanding of the resulting positions, not only a favorite trap.
What to do
Choose a coherent response to the common openings you face. Record development priorities and typical pawn structures, then review actual games before adding rare sidelines.
A mistake to avoid
Do not use a trap as the only explanation for an opening. Your position still needs a sensible plan when the opponent avoids it.
A detail worth checking
Check the positions you enjoy defending as well as attacking. A repertoire is easier to study when you understand its typical compromises rather than choosing only from an attractive name or a famous trap.
Try this practical check
Create a one-page repertoire map and mark the first point where you regularly feel uncertain. Study that branch before expanding into more possibilities.
Related reading
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