#12) Investigate the magnitude of each of your sins. Determine which punishment you deserve for each of them [Malkos- 40 lashings, Kareis- heavenly death penalty or Misas Bais Din- capital punishment meted out by a rabbinic court of law. (Though Malkos and Misas bais Din aren't in effect today, as we are in Galus, variations of them are meted out through the heavenly court for those who deserve them) ] and do the appropriate Teshuva for each of them.
#13) Consider even the seemingly insignificant sins as grave sins in your own eyes; don't dwell on the smallness of the sin, rather dwell on the greatness of the king [Hashem] who commanded you to do His will.
#14) Explicitly enumerate each and every one of your sins (Vidui) as well as the sins of your forefathers.
#15) Pray to Hashem and beg Him to have mercy on you and forgive you and erase your sins and purify you from their harmful effects.
#16) Repair your wrongs. Return the stolen items if you stole, or beseech your friend for forgiveness if you spoke Lashon Hara (evil gossip) about them or embarrassed them or other similar sins against your fellow man, as there can be no atonement from Hashem until you secure forgiveness from your friend.
#17) Seek and do acts of kindness (e.g. Tzedaka and Gemilas Chasodim) and give support to people who advance truth such as Talmidei Chachamim and Torah scholars, and stay away and shun falsehood.
#18) The [details of your] sin should remain in your mind always until the day you die (as to remember not to repeat them)
#19) Let go of the Sin. If the opportunity arises again to do the identical sin, conquer your Yetzer Hara and run away from the [place of] sin, as you would run away from a sword that was pursuing you, because of your fear of Hashem. And even if the same opportunity of sin does not present itself again, have in mind during Krias Shma, when saying the words "B'Chol NafShecha" that you are willing and ready to give up your life in order not to transgress the 3 cardinal sins (murder, idolatry and sexual immorality), and it will be considered as if the opportunity arose, and you withstood the test and didn't transgress.
#20) Facilitate the repentance of others. Causing others to sin is one of the worst things to do, and on the other hand, causing others to do good deeds and/or repent is one of the most worthy things a Jew can do, and is also very vital to his/her own Teshuva.
2) The holy Sefarim (Rav Yonasan Eibeshitz Zt"l , The Shlah Hakadosh and others) tell us that the last week of the year (which begins today) is very unique in that it has very strong powers of Kaparah- atonement. Each "last" day of the year can atone for each matching day of the whole year. For example: Today, Tuesday, if utilized properly can atone for all the "Tuesdays" of the entire year past. Tomorrow, Wednesday, can atone for all the "Wednesdays" of the entire year, and so on.
It is very worthwhile to try and use this last week and infuse it with Torah, Tefilah, Teshuva, Tzedaka and as many good deeds as possible. This sentiment is echoed by our holy sages, the Chazal, who taught us "Hakol Holech Achar HaG'mar- everything is [judged] based on the end[ing]"
May Hashem bless us all to realize the gift of Teshuva and to utilize it to the best of our ability.
Our holy sages, the Chazal tell us תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן עולם הבא, שנאמר הליכות עולם לו, אל תקרי הליכות אלא הלכות
- one who studies [at least two] Halachos daily is assured a portion in Olam Haba - the world to come.
(:מגילה כ"ח )
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