Letting it go and giving it to God; usually that means getting 'self' out of the way as the other two posters above eluded too.
Being humble, or 'meek' (meekness/ lowly in heart) is not making much of ourselves, but serving others-serving God. Joy comes form the ability to give yourself away and serve others in love. Christ being the ultimate example of 'humility' on the cross.
Serve Him:
Galatians 5:
22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,
23 Meekness, temperance: against such there is no law.