I grew up believing Christ was our savior, but it was definitely more a head belief than a heart belief. I know I never had a born again experience or anything like that. As I got older, I started to drift away from my faith, if I could even call it that. I feel that, to a certain degree, I've gotten colder and more hard-hearted. A big part of me wants to be saved, but another part of me doesn't want to give up my sins. More importantly, I'm not sure I'm capable of true repentance. Sure, there are some things I feel sorry for, but there are other things that I know are sinful that I'm not sure I'll ever feel sorry for. I'm also not sure I can ever love and put faith in someone I'm only 60-70% sure exists and is who he says he is. I'm a natural skeptic and not just about this. Is it possible I'm too far gone to be saved?
Right questions. Wrong target audience.
There are examples and teachings in scriptures concerning there coming a point where one who comes to a clear knowledge of the gospel, and that not just a mental assent, but a drawing from the Father, it's written in one place as "For if we go on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins, but a fearful expectation of judgment", and again, "For it is impossible, in the case of those who have once been enlightened, who have tasted the heavenly gift, and have shared in the Holy Spirit, and have tasted the goodness of the word of God and the powers of the age to come, and then have fallen away, to restore them again to repentance, since they are crucifying once again the Son of God to their own harm and holding him up to contempt."
In other places, Jesus proclaims concerning a group of pharisees that they blasphemed the Holy Spirit, knowing fully Jesus as their Messiah, the willfully rejected Him as such, and found no further repentance in their lifetimes, and the crowds who He spoke in parables to, because they did not believe in His clear teachings, then the truth was withheld from them.
Since you show concern for your own salvation, it might be because the Father is drawing you to Himself, because a wicked and reprobate man will not do so, Ps 10:4 "The wicked, through the pride of his countenance, will not seek after God: God is not in all his thoughts".
You should turn from your sins, trusting in the redemptive work Jesus did on your behalf, taking your place as a sin offering before the Father, even if your prayer is the same as the man in Mark 9:24, "I believe; help my unbelief!"
There is no promise given to any of us that that we will have an opportunity to be saved again, because no one comes unless the Father draws him (Jn 6:44). That's something good for everyone putting it off might want to bemindful of, there may be now opportunity given for that death-bed confession that many fall back on as to when they will be saved. God is our Creator, not our fire insurance.