I tried to bunny hop on my hybrid. Failed

I tried to hop just 1cm on my road bike. Failed

I know I have decently strong arms. What am I doing wrong? What is the secret? I can't even hop 1cm, let alone up a sidewalk curb.
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2012 Specialized Amira Elite, upgraded carbon handle bars, Jett saddle 143mm switched to 145mm 2012 Selle Italia Max SLR Gel Flow saddle
2010 Santa Cruz Juliana with R kit
2011 Specialized Ariel Sport,suspension post,Serfas Rx Women's Microfiber saddle (sold)