Before Yom Kippur, you need to apologize directly to anyone you've hurt. God forgives sins against him through prayer, but sins between people require the other person's forgiveness. Pride keeps you stuck with the guilt.
Chapters
One thing I want to remind you, if you offended people and they upset with you, they don't talk to you, you know, fights, family, friends, business, you must make peace with them before Yom Kippur. If you don't, all the sins between you and other people is not erased. It's not forgiven. Sins between men to God, you can erase it. Praying, crying, but sins between men to men, only men to men can forgive. Measure for measure. You don't want to forgive people who beg you for forgiveness. When you beg me for forgiveness, I also don't want to forgive you. So who is suffering the most? This stubborn, proud person