Prior to rolling, think about what will happen if the roll fails or succeeds. If you are worried about failure at all, that is a good sign that failing is probably not an option. Basically, if you are able to make the decision to fudge it when it happens you had the same time frame to decide notnto risk that need to fudge in the first place.
Over time with more experience you will find ways to make failure a bump in the road to fun tims.