Here's something I learned through depression and Fate. You assume the worst. Try to avoid the worst. Worst happens anyway. The worst that happens through fate is lot different than what you imagined. It can be good or bad depending on your previous chained reactions of thoughts & actions. So don't challenge fate, challenge your existing actions. Make things that are likely to make you stronger. If you always go for being stronger, it doesn't matter how you end up with bad fate. Alteast you were strong enough to face it and look at it in the eyes. At the end, that stand matters.