Parenting is not easy. Every parent feels stressed at times so don't feel too guilty if you shout or get angry at your child from time to time. But please, Never Shake Your Baby. Shaking a baby can cause serious harm to the brain, causing unconsciousness or fits.
All babies cry sometimes.
If you can find out what the baby needs and provide it, usually the crying will stop. However finding out what a baby needs is not always easy. Leave the room. Give yourself a chance to calm down. Try telephoning a friend or relative who will be supportive.