You made a plan and if you are serious about it you can do it. I found I had to make new friends. That took some time but I did it. Eventually that crowd will fizzel out with the drinking and drugs and if they don't then they will be on the path to death themselves. You want better for yourself and that's a huge step.
I did have people who would try and push and say "ohhhhh come on, one drink isn't going to hurt you" and in the heat of it all I really wanted it but I held my ground and felt soooo good about myself.
If you like to be around people then go volenteer somewhere. In the beginning of your recovery it is not good to be around triggers or be tested. That's a very bad idea.
Hang in there. Have fun and if you have to pretend you are drinking. No one has to know.