Is God fickle? Is our God a capricious God? Do you think that God changes his mind on judgment day? Do you think that the God who did not stop loving his enemies even though they tortured and killed him will suddenly begin to hate his enemies (Matthew 5:43-48)?
(See, The Rule of Survival - Ask, Seek, Knock (A.S.K.))
As long as you were running the race in this life - as long as you were asking, seeking and knocking for the kingdom of God while you live, you will see the gift of paradise coming to you. It will be a ground ball straight to your glove. You cannot muff it. However, if you are not interested in the gift of paradise now - if you are not asking, seeking and knocking - when the gift of paradise comes to you, you will not recognize it. It will pass you by.
It is important that you pick up the roots that bind you to the hostile desert of godlessness and join the other pilgrims who are making their escape through it from slavery under the yoke of Pharaoh to freedom with God and his holy family in the promised land.
There is a promised land. Are you making your escape toward it? Are you asking, seeking and knocking? If you are not, you are in trouble.
The gift of paradise is in the pipeline. It is heading your way. God has already sent it to you. The problem is not in the giving. Any problem that exists is in the receiving. Keep your eye on the ball.