Start small
Adolescent dogs often need simpler practice again while they learn to handle bigger feelings and distractions.
There is no need to rush. A predictable, manageable step is usually more useful than trying to solve the whole situation in one day.
Try this next
Lower the difficulty, use short sessions, and reward the behaviour you want to see more often.
Notice what helps your dog stay comfortable and engaged, then repeat that version before making the situation harder.
Keep it kind and practical
Keep the next step easy enough that your dog can succeed. If you are worried about safety or feel stuck, pause and ask a qualified reward-based professional for help.