I had the hardest time with this forever too and only used half-clips (I can't track stand so starting at intersections was the worst), then I realized my SHOES were the problem. No grips on the bottoms at all so it was impossible to flip the pedal over. So I bought new shoes and now getting into clips/straps is easy peasy. Also as some other people have mentioned it could be your pedals but you don't necessarily need BMX pedals. I use MKS GR-9s and they are pretty easy to flip over.