Rather than bemoaning our life experiences look at each one as fertiliser contributing to your growth.
Without the challenges, the heartbreaks, the loss, your development may well be stunted.
Shift your perspective and realise that sunshine alone is like feasting on bread; the initial outcome to fill our bellies is certainly achieved - but we will not thrive on bread alone.
"Out of suffering have emerged the strongest souls; the most massive characters are seared with scars." - Kahlil Gibran