The short version is that I think it is possible you are hypo right now. Here is the long version.
There is no judgement here. Please do not take any of this personally. It is a Bipolar thing to foolishly mess with meds acting as though they are some qualified doctor able to do this intelligently. And this continues even when the person has had predictable major setbacks while doing this in their past. This is something that I will never understand, but there were times I was very tempted to do this on myself. I actually did this once...or twice. So I have been a part of this too. Go figure.
You are backing away from AP meds? This is allot more serious than adjusting some AD or antianxiety med. Be prepared for the predictable set back to that which is not any longer reality. I do not think anything is worth experiencing psychosis. Nothing at all. I need to function. But then you may think differently. One thinks differently while hypo.
Now your attempt at prescribing yourself different dosages may be impulsive on your part. Also you are ignoring the probable consequences. You may even think this is no big deal. If this is the case, you may very well be hypo, particularly if this is not your normal behavior, in your approach to your meds. If you are hypo, your the worst person to gauge the probable outcome. Heck, you may be hypo in obvious ways, but you are not in the position to understand this while being hypo. Ask a trusted friend or family member for their feedback. I bet they can give you some good feedback. I guess this is why you are asking us here for input. Personally I do not have the luxury to not be functional, no matter how much better I think I can feel. Still, if I am hypo like you may be, I also may not understand this myself.
Just some thoughts. I do wish you well.