Nitzavim - Repentance

(א) וְהָיָה֩ כִֽי־יָבֹ֨אוּ עָלֶ֜יךָ כָּל־הַדְּבָרִ֣ים הָאֵ֗לֶּה הַבְּרָכָה֙ וְהַקְּלָלָ֔ה אֲשֶׁ֥ר נָתַ֖תִּי לְפָנֶ֑יךָ וַהֲשֵׁבֹתָ֙ אֶל־לְבָבֶ֔ךָ בְּכָל־הַגּוֹיִ֔ם אֲשֶׁ֧ר הִדִּיחֲךָ֛ יְהוָ֥ה אֱלֹהֶ֖יךָ שָֽׁמָּה׃ (ב) וְשַׁבְתָּ֞ עַד־יְהוָ֤ה אֱלֹהֶ֙יךָ֙ וְשָׁמַעְתָּ֣ בְקֹל֔וֹ כְּכֹ֛ל אֲשֶׁר־אָנֹכִ֥י מְצַוְּךָ֖ הַיּ֑וֹם אַתָּ֣ה וּבָנֶ֔יךָ בְּכָל־לְבָבְךָ֖ וּבְכָל־נַפְשֶֽׁךָ׃ (ג) וְשָׁ֨ב יְהוָ֧ה אֱלֹהֶ֛יךָ אֶת־שְׁבוּתְךָ֖ וְרִחֲמֶ֑ךָ וְשָׁ֗ב וְקִבֶּצְךָ֙ מִכָּל־הָ֣עַמִּ֔ים אֲשֶׁ֧ר הֱפִֽיצְךָ֛ יְהוָ֥ה אֱלֹהֶ֖יךָ שָֽׁמָּה׃

(1) When all these things befall you--the blessing and the curse that I have set before you--and you take them to heart amidst the various nations to which the LORD your God has banished you, (2) and you return to the LORD your God, and you and your children heed His command with all your heart and soul, just as I enjoin upon you this day, (3) then the LORD your God will restore your fortunes and take you back in love. He will bring you together again from all the peoples where the LORD your God has scattered you.

(ח) וְאַתָּ֣ה תָשׁ֔וּב וְשָׁמַעְתָּ֖ בְּק֣וֹל יְהוָ֑ה וְעָשִׂ֙יתָ֙ אֶת־כָּל־מִצְוֺתָ֔יו אֲשֶׁ֛ר אָנֹכִ֥י מְצַוְּךָ֖ הַיּֽוֹם׃ (ט) וְהוֹתִֽירְךָ֩ יְהוָ֨ה אֱלֹהֶ֜יךָ בְּכֹ֣ל ׀ מַעֲשֵׂ֣ה יָדֶ֗ךָ בִּפְרִ֨י בִטְנְךָ֜ וּבִפְרִ֧י בְהֶמְתְּךָ֛ וּבִפְרִ֥י אַדְמָתְךָ֖ לְטוֹבָ֑ה כִּ֣י ׀ יָשׁ֣וּב יְהוָ֗ה לָשׂ֤וּשׂ עָלֶ֙יךָ֙ לְט֔וֹב כַּאֲשֶׁר־שָׂ֖שׂ עַל־אֲבֹתֶֽיךָ׃ (י) כִּ֣י תִשְׁמַ֗ע בְּקוֹל֙ יְהוָ֣ה אֱלֹהֶ֔יךָ לִשְׁמֹ֤ר מִצְוֺתָיו֙ וְחֻקֹּתָ֔יו הַכְּתוּבָ֕ה בְּסֵ֥פֶר הַתּוֹרָ֖ה הַזֶּ֑ה כִּ֤י תָשׁוּב֙ אֶל־יְהוָ֣ה אֱלֹהֶ֔יךָ בְּכָל־לְבָבְךָ֖ וּבְכָל־נַפְשֶֽׁךָ׃ (פ)

(8) You, however, will again heed the LORD and obey all HIS commandments that I enjoin upon you this day. (9) And the LORD your God will grant you abounding prosperity in all your undertakings, in the issue of your womb, the offspring of your cattle, and the produce of your soil. For the LORD will again delight in your well-being, as He did in that of your fathers, (10) since you will be heeding the LORD your God and keeping His commandments and laws that are recorded in this book of the Teaching--once you return to the LORD your God with all your heart and soul.

How are we to understand the verb לשוב in the 7 contexts here? Why do they differ? What is the meaning behind them? What is the connection to High Holy Days?

(יא) כִּ֚י הַמִּצְוָ֣ה הַזֹּ֔את אֲשֶׁ֛ר אָנֹכִ֥י מְצַוְּךָ֖ הַיּ֑וֹם לֹֽא־נִפְלֵ֥את הִוא֙ מִמְּךָ֔ וְלֹ֥א רְחֹקָ֖ה הִֽוא׃

(11) Surely, this Instruction which I enjoin upon you this day is not too baffling for you, nor is it beyond reach.

No one is saying this is easy, but it is also not impossible. How can we make ourselves better? In what ways can we repent or turn ourselves into better people?