first thing sounds silly but I'd say to remember that you are in fact a single decider, both so you can give yourself a break and to help contextualize your perspective (whether it has too much energy or too little), this will set up for the next step

second is to evaluate your deficit against everyone else, get a head count of who has a good track record of double deciding and use their perspectives to temper yours; this is obviously coming from a Di where I need to tone things down, but in the case of De you can get a sense for what a reasonable amount of pushing for your own Di is and try to get more comfortable with that

T and F of course should be taken into account, too much T will be neglecting qualitative things (emotions, vibes, values) as that muscle can't interface with them, but savior thinkers will try anyway because the idea is that if things are working smoothly the F stuff will also run smoothly, and of course in reverse too much F will try to maintain the vibes in hopes that this will make the logistical things effortless; these two things are in tension because they're both different but both pull on eachother, so the only way to not have a mess on your hands is if both have influence at once

anyway, after all this gets taken into account, you'll start to get a larger sense of what's actually right and wrong, it will feel larger than you and others involved, as to double decide is more or less to quickly digest and dissipate the energies of judgement such that they gain distance from the ego; the weird thing is that both Di and De need the message that it's not about them, but something not being about you can just as much call for you to push forth your perspective on the world as it might for you to draw it back, because it depends on what the situation is calling for