

First of all, it's perfectly okay to doubt that God exists. Everyone does at some point and it's completely normal. But I and many other people (91% of the population) can assure you that God is very real. It's good that you're going to church! Perhaps you could talk to a pastor or someone you are comfortable with at your church to answer some of your questions about His existence, or read books about it.
Secondly, you don't have to worry about going to hell. Since you're committed to becoming a good Christian, you just have to turn your life over to Jesus. Just give your heart to the Lord, and you're saved! Trust in Him always and know that God has plans for you.
If you ask God to forgive you of your sins, he definitely will! And because he sent Jesus to die for your sins, you are saved. Depending on the specific sin(s), you may want to get extra help with trying to stop (a counselor, pastor, etc.).
And about prayer, I've felt no one was hearing me either for a while. I just kept at it and suddenly I felt like God was there, listening. Try this and I'm sure it will work for you, too! You could set a time of day to pray, if you aren't already.
I hope this helps. God bless!
Secondly, you don't have to worry about going to hell. Since you're committed to becoming a good Christian, you just have to turn your life over to Jesus. Just give your heart to the Lord, and you're saved! Trust in Him always and know that God has plans for you.
If you ask God to forgive you of your sins, he definitely will! And because he sent Jesus to die for your sins, you are saved. Depending on the specific sin(s), you may want to get extra help with trying to stop (a counselor, pastor, etc.).
And about prayer, I've felt no one was hearing me either for a while. I just kept at it and suddenly I felt like God was there, listening. Try this and I'm sure it will work for you, too! You could set a time of day to pray, if you aren't already.
I hope this helps. God bless!