If you believe you're not ready, then you aren't ready. The motivation to be sober is being overcome by the lack of justification to do what is truly right. If you are still finding reasons not to be sober then you will probably not be sober. Make a list of what is good about being sober and what is not and see which column is longer. I don't think just wanting to be sober will work, I had to want other things to really want to be sober, like being alive, or being employed, or having a more fulfilling life, or enjoying my family... etc. I think it's different for each person so you have to find the you in being sober and that is why you will be sober.