This is why it is very important to release negativity early on, and not allow ourselves to say things that infringe upon others. It is important to express self-control, but of course we all know that and usually don't intentionally say hurtful things. Sometimes this is just a part of being human. If apologizing does not cure your discontent feeling and talking does not fix your problem, there is always the option of releasing the negativity out of your aura into the Universe. I will explain an effective way of doing this now.
Find a place to sit quietly where you won't be disturbed and sit down with your legs crossed. You don't have to make any specific position of the hands, just sit there with them on your lap, with your palms facing up. Close your eyes and begin breathing at a comfortable rate focusing on the air entering and exiting through your nostrils. Imagine as you breath in you are attracting all things that are good, loving, and peaceful, and as you exhale gently release all problems, fears, tension, and frustration. Imagine a nice calming purple energy falling upon you from above. This purple healing mist is breathed in through your nose and distributed throughout your body healing everything it comes in contact with. It is effortless and natural. You force nothing, you just relax. Continue breathing slower and slower with each breath you are healing your body and balancing your energy. As you balance yourself your aura has no room for negativity because it has no place to attach. If your etheric is jagged and broken, negative energy can attach itself, but if you are calm and balanced your aura is smooth and balanced so you are invincible to negativity. Do this exercise for about 24 minutes sitting completely still. The reason I say 24 minutes is because its one for each hour of the day. I think that is reasonable. Your Ego may try to fight you with thoughts of doing the dishes or checking Facebook, but if you persevere you will come to feeling refreshed and centered, and the negativity will be gone from your energy field.
Doing an exercise such as this is a discipline. It probably won't be comfortable to begin with, but then again you aren't comfortable feeling in the first place, thats why you are doing the exercise. The lesson here is to love yourself enough to take action to release negativity before it has the chance to work its way deeper. As I said in my book the "Book of Powers" love is nothing more than concentration. If you concentrate on yourself then you love yourself, if you concentrate on a loved one, you give them your attention and focus, therefore you love them. So remember love yourself enough to release all negativity as early as you pick it up. Its like a stinky shoe, if you don't clean it or throw it out, it will stink up the whole house.