what will my lawyer ask me?

Whether you have been to court before, and if you have, what happened. (If you can't remember, then this information has to be provided to the lawyer by the police).
Your version of the event which led to you being charged.
If you want to plead not guilty, whether you have any witnesses.
If you are pleading guilty, your lawyer's job is to explain to the court why it was that you committed the offence. They will ask you lots of personal questions.
Whether you can get character references. These are written references by people of 'standing' in the community (i.e. teachers, community workers, employers or people who have known you for a while).
Details of any doctors you are seeing, and any medical treatment you are on. If possible provide evidence to the court that you are addressing a drug addiction (i.e. clean urine samples, that you are on methadone/buprenorphine/naltrexone, or any reports from detox units).