God never promised anyone an easy life. He also said that we would have struggles. At times, we may fall flat on our face. The difference between someone who trusts in God vs someone who trusts in evil is how they respond when they fall.
Though a righteous man falls seven times, he will get up, but the wicked will stumble into ruin.
Proverbs 24:16 HCSB
A fall, no matter how far or how many times can be forgiven and forgotten by God. A mere stumble can keep others down for the count.
If you are truly a believer, there is no reason to not get back up again from a fall. Even though life gets tough, He will pull you through.