God has given us express instructions on how to live. If you choose not to follow these instructions in life, preferring your ways to His (and therefore separating yourself from Him), then you will be given that after death as well.
I'm agnostic and tend to stay more on the gnostic side
Do you think giving a few dollars here and there and not doing anything terrible is worthy of the reward of eternal paradise? It's one thing to think that kind of life doesn't deserve punishment, but to think it deserves an infinitely huge reward?
Or you can believe and accept it as a gift you don't deserve.
No. There must be Baptism, Repentance, and following of the Commandments.
Repentance in the modern sense is "you feel bad and apologize, ur saved!". Repentance in the full sense of Scripture is fixing your life towards God, approaching Heaven as a foot-race, with fear and trembling.
sure, those count as almsgiving. there is no minimum or maximum set to almsgiving.
Who knows? No one can know whether they will go to to Heaven.
I tend to be on the side where I hope for the salvation of pretty much every human. I hope that He will see how imperfect each of us are and judge us accordingly; only letting those get away who, thru both belief and action, completely separated themselves from Him and everything good during their lives. You can't force anyone into Heaven, after all. Hell does remain a real possibility.
Of course, you would be better off if you at least made a sincere attempt at a leap of faith. Remember that He wants you to join Him.
As Benedict XVI said of purgatory:
This user has wisdom.
Wrong.
Take the pascal wager. What could go wrong?
It would. Christ demands that you believe that He is God, that He was born a man, and He died was resurrected for the forgiveness of your sins. You seem like you're at least part of the way there already, why don't you try to "make yourself" believe in Christ?
He won't as you are a reprobate. It is impossible to enter heaven without the catholic faith. Read the athanasian creed.
You are too proud hence why you masturbate. Stop masturbating and you'll have a chance at receiving supernatural faith.