The question is critical as you can always apply for divorce without a lawyer and choose to be a self-represented litigant. However, it is always advisable to go ahead with a trained professional who would be able to put across all the nuances. You can go before the court without a lawyer seeking divorce but whether you get it or not depends on your legal expertise. So if you are confident, there is nothing that would stop you but you are expected to be wise at the same time.