The most important thing you need to do as a Christian is not the act attending church every Sunday.
The most important thing you need to do is to discover what the LORD wants you do and then get started. You can attend church services religiously for decades and yet have no clue about the divine will and counsel for your life.
Not all churches teach about the subject of divine purpose: finding it and executing it. However, this is crucial to living a meaningful and purposeful life.
Going to church every Sunday is not a requirement for making heaven. (Although, it surely helps)
