You do not have to use a lawyer for the divorce proceedings, however if you are finding it difficult to complete the Application for Divorce by yourself, you may want to get some help from family and divorce lawyers. You may also choose to have a lawyer represent you at the hearing.
The divorce itself is separate from all the other issues, which need to be sorted out when you separate from your husband/wife/partner. A divorce is the legal ending of your marriage and is usually the last thing to do when everything else is sorted out. You can make arrangements for the children (such as who they are going to live with, and when they are going to spend time with the other parent), and start to work out how you are going to divide up any property (and debts) as soon as you are separated. You do not need to wait to be divorced to sort out these important matters. You should obtain legal advice about making arrangements for the children and working out a settlement with your husband, wife, or partner after separation.