Replying to I suck at tubes

I somehow got worse at tubes. My park has this tube that is like 80 percent in the ground and I can’t slide it, everytime I try I slide out backwards and I try leaning forward and it doesn't help. I used to be able to kinda slide a tube but the other tube was higher up, could the low tube be fucking me up? Also there’s a really ez rail at my park so should I just skip the whole tube issue and try to learn that and figure out tubes later?