Sk8 board ollie. What am i doing wrong?

I am new to sk8boards and i've been taking online lessons from web pages and stuff but i just can't do it... The back of my board slides left and obviously my back foot lands to the right. I jump between 2-3 steps high and my front foot always lands on the board. I am a natural stance and 12 yrs old. If you can find a intelligent reason for this plz answer. if u just wanna bag me or tell me to get a life don't bother, u will be ignored or spammed.