Are withdrawal Symptoms linear?

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I have managed to get down to .5mg from 2mg which I was on since beginning of year. Xanax was used for many years maybe 5+ before that. I am now at .5 and I feel more symptoms and have decided to hold for another week or 2. Usually I can get away with 2 weeks before another drop. I talked to my doctor and she said this is normal at this stage to struggle a bit but she feels I am doing pretty good so far. I asked if this will just get much worse and she said not necessarily as this could be the beginning of peak withdrawal symptoms for me. So I am curious as I keep dropping down will it keep getting worse or is there breaking point such as where I am now where you are experiencing the worst it will get? I imagine many of you would say it varies by person, but curious if anyone had a similar experience where a dose hit you harder than usual(Almost a wall) and the following doses were easier or at least the same in severity.

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Once the drugs are cleared from the body. There is no direct mechanism of withdrawal. Everything else is a re-regulation which has many factors, both chemical, emotional and environmental.