One thing we must never mix together is salvation and sanctification:

Salvation is a gift of God’s grace for all who believe that cannot be earned or merited. Sanctification means to become more like Christ and to grow in maturity as a Christ follower. Sanctification has nothing to do with salvation. We are not saved because of are Christ-likeness or our spiritual maturity but only because of God’s gift that comes through receiving Christ alone (Romans 6:23). Once we have believed in Christ and are eternally saved through Christ alone we begin to walk in sanctification (Christ likeness). How well we walk and mature in Christ does not impact in any way our future place in heaven or the fact that we are God’s adopted kids

Growing up in Christ and becoming Christ-like has everything to do with our impact for Christ in this world and the fruit we bear. Also our obedience to God in this life affects our intimacy with God and how we are disciplined by Him. If we are rebellious children He does discipline us accordingly for our good. We will reap what we sow in this life. If we are disobedient we will reap the consequences of our actions good or bad. But even those sons and daughters that walk in disobedience and are continually getting in trouble remain God’s kids and will be with Him in heaven. Their rewards and the fruit they produce in this life will impact their rewards in heaven and in this world, but this has nothing to do with their place in heaven that remains forever secure.
What I have said above does not mean that when we see bad things happen in life to fellow believers that they are always a result of their disobedience to God. There are many who walk uprightly before God in this life and experienced many trials an tribulations according to God’s over all design and good pleasure. A good example of those who walked uprightly before God yet experienced extreme hardship is Job, Apostle Paul, and Jesus Christ. So we need to be extremely careful as brothers and sisters in Christ how judge one-another, as it says in, (Hebrews 12:6) For the Lord disciplines those he loves, and he punishes each one he accepts as his child.” We as Christ followers will all experience the rod of God’s correction for our good and a proof of our adoption.