Help me…

Today was my first day trying to back flip to snow. I got the first 270 degrees of the flip fine, but during the last 90 degrees of the flip I begin to rotate frotnside and not land it (almost like a bad frontside rodeo) If anyone can help me land them please let me know your tips. Backflip attempt #1 – YouTube attempt 1 Backflip attempt #2 – YouTube attempt 2