Hey there, hope you are fine.

If you are taking drop and not participating in the josaa counselling this year then it will have no impact on your upcoming participation in the counselling in the further years. The counselling takes place every year after jee advanced results are declared. The participation in this year counselling will have no impact on your  participation in the future.

So, you should not take tension and focus on your studies and perform better in the upcoming exams. Hope this resolves your query.