And we know that for those who love God all things work together for good, for those who are called according to His purpose. Romans 8:28
Generally, optimism is a characteristic that needs to have a healthy balance.
On one hand, if people are too optimistic, they can end up making a bad decision or getting disappointed. On the other hand, if someone is not optimistic enough, they could potentially miss out on something great.
That being said, Christians don’t need to be wary about optimism when it comes to their faith. By knowing Jesus and the love He has for us, we are assured that in every situation, we will be the victors as we are led by Him.
Be free to hope for great results in whatever you are working on, because if Jesus is your leader, you are always on the winning side.