Quitting Smoking

I smoke and have been pretty bothered by it, even finding thoughts such as:

I hate that I smoke
I’m ashamed of if
I feel desperate to quit very soon
What if I can’t quit?
What if I can’t commit to quitting?

I have done several models and bridge thoughts, but I’m not sure if there is anything else I could be doing meanwhile other than practicing the newer thoughts when my brain starts thinking the other. My smoking has not changed any with the bridge thoughts.
Thank you so much.