“Through these he has given us his very great and precious promises, so that through them you may participate in the divine nature, having escaped the corruption in the world caused by evil desires.” - 2 Peter 1:4
You have not yet escaped corruption. You have been given a beautiful gift that will allow you to do so, but while you have life, you must choose life. The promises He makes are rocks on which you can stand. Persevere, for you cannot fail. Persevere, because He backs you. Persevere, because no matter how dire, He gives salvation and redemption.
You will make a mistake you wish you had not. Persevere. Because that mistake will not cost you salvation. You will achieve success in an endeavour, be joyful, and know you had been supported with His love. Even your mistakes may guide others to salvation. If you let Him into your life, all is good. And so, while you have not escaped corruption, still you can taste salvation.