When the Bible says "do not lean on your own understanding," the Bible is being serious. Your heart is deceitful, your emotions fluctuate, your understanding does not see the overall, big picture. God never lies, God never changes, God knows all. Trust Him.
I wrote a love letter/ prayer for my bf at the time in my journal. 5 months later the whole journal is going in storage. I can never predict life’s circumstances, but I thank God for his guidance always.