I think its normal to feel the way you are, the good thing is it sounds like your mind set is in recovery and out of addiction at the moment because you can see the insanity that gambling was. The serenity prayer is a good one for the situations where you think of the past and you cant change it. It was teaching you to get to where you are now. Maybe had you not gambled and been through this you may not have appreciated those little things nearly as much today. Just a thought. You are doing well.. keep going. Dont be hard on yourself.. addiction doesnt discriminate. You have done well to stop and use support.