Definitely having a positive attitude and trying to see the good in everything has been a major help to me in life. These passages help me a ton when I get down.
Rom 8:28 And we know that all things work together for good to them that love God, to them who are the called according to his purpose.
Php 3:12 Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus.
Php 3:13 Brethren, I count not myself to have apprehended: but this one thing I do, forgetting those things which are behind, and reaching forth unto those things which are before,
Php 3:14 I press toward the mark for the prize of the high calling of God in Christ Jesus.
Php 1:6 Being confident of this very thing, that he which hath begun a good work in you will perform it until the day of Jesus Christ:
Psa 103:1 Bless the LORD, O my soul: and all that is within me, bless his holy name.
Psa 103:2 Bless the LORD, O my soul, and forget not all his benefits:
Psa 103:3 Who forgiveth all thine iniquities; who healeth all thy diseases;
Psa 103:4 Who redeemeth thy life from destruction; who crowneth thee with lovingkindness and tender mercies;
Psa 103:5 Who satisfieth thy mouth with good things; so that thy youth is renewed like the eagle's.
Psa 103:6 The LORD executeth righteousness and judgment for all that are oppressed.
Psa 103:7 He made known his ways unto Moses, his acts unto the children of Israel.
Psa 103:8 The LORD is merciful and gracious, slow to anger, and plenteous in mercy.
Psa 103:9 He will not always chide: neither will he keep his anger for ever.
Psa 103:10 He hath not dealt with us after our sins; nor rewarded us according to our iniquities.
Psa 103:11 For as the heaven is high above the earth, so great is his mercy toward them that fear him.
Psa 103:12 As far as the east is from the west, so far hath he removed our transgressions from us.
Psa 103:13 Like as a father pitieth his children, so the LORD pitieth them that fear him.
Psa 103:14 For he knoweth our frame; he remembereth that we are dust.
Psa 103:15 As for man, his days are as grass: as a flower of the field, so he flourisheth.
Psa 103:16 For the wind passeth over it, and it is gone; and the place thereof shall know it no more.
Psa 103:17 But the mercy of the LORD is from everlasting to everlasting upon them that fear him, and his righteousness unto children's children;
Psa 103:18 To such as keep his covenant, and to those that remember his commandments to do them.
Psa 103:19 The LORD hath prepared his throne in the heavens; and his kingdom ruleth over all.
Psa 103:20 Bless the LORD, ye his angels, that excel in strength, that do his commandments, hearkening unto the voice of his word.
Psa 103:21 Bless ye the LORD, all ye his hosts; ye ministers of his, that do his pleasure.
Psa 103:22 Bless the LORD, all his works in all places of his dominion: bless the LORD, O my soul.