Experience

Acknowledge your successes and failures:
A road with no hills and valleys is probably not worth travelling

Love is patient

Be completely humble and gentle; be patient, bearing with one another in love. - Ephesians 4:2

First thing you need in love is patience. Think of it as a marathon not a sprint. But it's a race worth running. (taken from the love dare)

Love

"Being deeply loved by someone gives you strength, while loving someone deeply gives you courage" - Lao Tzu