'I would like to trust God, but I'm scared of the uncertainty.'
This betrays a misunderstanding: the material world is indeed uncertain. People, circumstances, even whole nations and empires come and go. It is not surprising that people assume that the spiritual realm is subject to the same uncertainty. However: it is only because the 'world' is an illusion that it is so unstable. Spiritual reality is unchanging. Opting to live a spiritual life is opting for the certainty that your spirit is safe forever and that God will never abandon you and loves you and everyone else without exception or condition. Opt for God; opt for certainty!