What gamblers eventually discover is that the gambling becomes their number one priority in life. You will sacrifice your job to it, you will sacrifice your friends and even family too it. Luckily you have been caught, now your ability to continue down that path of destruction will be severely disrupted, its a blessing in disguise!
For your initial police interview, as well as getting a lawyer, you could also try contacting one of the many gamblers support agencies for advice on what to do?