Because God loves you and wants you with Him for all eternity. Because God suffered horrifically for your sins (and mine) so that we may be saved and because He loves YOU.
All my
prayers have been falling on deaf ears.
How do you know this? Just because you can’t see any results, doesn’t mean they haven’t been answered. wrt others returning to God and the Church - perhaps your prayers have been answered and the grace/inspiration to return was given them,
but the person using their
free will considered returning but rejected doing so. Your prayer was answered, but the person used their freewill to decide not to return. God loves us too much to over ride our free wills.
Is God’s only will is to not answer my prayers?
Again - how do you
know with absolute certainty they haven’t? Perhaps they have been answered but will occur in the future? Perhaps the person will convert on their death bed, perhaps after your dead, perhaps in 5 years, 10, 20 or 30.
If he doesn’t listen, why should I keep holding on to him?
He does listen. It is us who don’t listen. Sometimes the answer is no, sometimes not yet, and sometimes yes and granted immediately.
God is outside of time. So whilst we expect an answer now or soon, what maybe soon or now for God may not be in our lifetime.
You should keep holding onto Him, because He is faithful. It is us who are the unfaithful in the relationship.
All of my atheist friends are certainly happier and doing great,
Appearances can be deceiving. They may be truly unhappy, but don’t show it. They may be lonely, but again don’t let on that is so. They may have a mediocre relationship/marriage or an unhappy one but to outsiders it looks rosy. They may have health issues but don’t talk about themselves. They may be grateful for what they have and realize there is always someone better off and someone worse off than they are.
tried so hard all these years to not lose my faith, but I think it’s happening.
That is your choice and up to you whether you give up. Don’t blame God - instead remember Matthew 14:31 "Jesus immediately reached out his hand and caught him, saying to him, “You of little faith, why did you doubt?” "