It is always better to take the prescribed dose. As you know, Ativan is extremely addictive and things might, just might get out of hand. Although, now you are not doing it in large amounts, eventually there will arise a situation where you won’t be able to stop. I say this because I have seen people do so. Recently my neighbor, suffered from overdose of Ativan but thankfully he is alright after undergoing counselling for addiction at Sunshine Coast Health Center in Vancouver. Thankfully he was able to escape unscathed but not everyone is lucky. Even though you wouldn't feel the difference now, it will start growing on you. You can try correcting this on your own like you have done already but make sure you stick to it. All the very best to you.