Pard, I'll be sixty-seven in two months. Forty-five is pretty good, really.
If you are serious (I don't know and am not equipped to judge) God accepts you. (He accepts me, go figure...) However, one does need to seriously pursue both the relationship to and knowledge of God.
Just keep working, putting one foot in the front of each other, your shoulder to the wheel and all those other old saws about perseverance.
Job had a fairly long 'dry spell' and he never 'left' God. You will get there. Trust God and keep going.