Don't feel guilty. If you are staying away from a drink, then you are doing something right. You should take joy in that fact.
In your time of recovery, you will occasionally come across people who think that their way is the only way. They think that since it worked for them, it will work for others. There is no right way to recover. It sounds like this is what is happening and your new acquittance got snippy when you didn't take her advice.
She probably cares since she is taking such an active role with you, but probably doesn't know how to properly display it. Hence, she got snippy instead of praising you for staying away from the drink.
You don't have to do 90 in 90. The intention of it is really immerse newcomers into recovery since there is a much higher chance of relapse during those 3 months.
There is no one way to properly recovery from alcoholism. If you stayed away from a drink today, then you did something right and you should be proud of that.