All religions share a lot, a l o t, of similarities, and I think whatever religion you follow shouldn't matter, but if you are a good person who helps others during your life, then you'll go to heaven.
Supposedly we're all bad people - all of us - so none of us deserve heaven. But eventually there comes the question of if we have any formula for which get to heaven, a foolproof plan, that is composed of orthodoxical or orthopraxic methods of attaining salvation. The only logical answer to that is no. If God wills someone to be in heaven, regardless of how faithful they were in life, then there's nothing stopping Him from making that decree.
But life is simply not about "getting to heaven." It's about concentrating on what's in front of you. It's about living the moment. It's about cherishing what you have and treating people the way you want to be treated, which is the number one rule
all religions teach. If you worry day in and day out about who's going where, at a time or place of which you cannot be certain, then everything you experience on this earth is absolutely meaningless. That's why questions like the thread title are absolutely meaningless, because any answer I give is pure speculation. That is why we are not to judge.