I’m going to give the same answers as in this thread about “becoming a demon”.
This is dualistic, dogmatic fiction that isn’t real. You’re ALREADY a higher being, incarnate into a human body, and when you leave that body you go on your merry way. What makes an energy being one or the other is the attitude it had and who’s doing the judging.
So if you want to be judged angelic, treat people in a way you’d consider to be in line with the title “angelic”.