Feel them, but don’t feed them. By that I mean take time to be aware of the feelings, but do not let the mind go into its default mode of fixation upon the object informing these sensations and worst-case scenario building. Give the feelings your attention but recognize that you influence your experience of the world and don’t give the mind free reign to build an illusory scenario that it accepts as its reality. (i.e. Remember what Mark Twain said, “I’ve had a lot of worries in my life, most of which never happened.”)
The biggest problem with negative feelings is that the go-to modern strategy is attempted distraction (by vice, by entertainment, by activity, etc.) this leads the body to turn up the heat. If you give the sensations your attention without adding value judgements, it becomes impossible to obsess. For yoga practitioners who’ve done Yoga Nidra (Yogic sleep) the experience will be familiar. One often begins by being attentive to sounds, by giving the sounds attention without judgement, your mind starts to lose interest and it becomes harder for those sounds to distract you throughout the practice. This approach to negative feelings is much the same.
Also, breathwork that extends the exhalation component of breath will shift the balance toward rest and digest activity.
Ultimately, realize that these feelings are just sensations your body and brain use to turn your attention in certain directions. They have no more power than that, other than what one grants them. They are not identical to — or inextricably linked with — the events of the world that triggered them, and — therefore — you get to be the master of, and not the slave to, your feelings.
The next time you find yourself getting bogged down by a negative feeling, give the feeling a minute or two of pure undivided attention, and then think, “This is a wonderful opportunity to learn how my body and mind work.” See what happens.
Tiger Riding for Beginners 