Manual/Wheelie advice!

Try as i might, I cannot get going on these. Have tried lowering the seat right down, leaning back, power stroke etc, but cannot get the wheel up more than a few inches. Really annoying!! Anybody got some advice? I have looked at a few sites on the net already. My bike is not too heavy imo.
Brad
Brad
2016 Giant Defy Advanced Pro 0
2012 Scott Foil 40
2009 Spesh Allez Elite
2005 Rocky Mountain Element 70
2012 Scott Foil 40
2009 Spesh Allez Elite
2005 Rocky Mountain Element 70
0
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It really isn't/shouldn't be hard to get the front wheel up. :?
Zaskar X
2012 Scott Foil 40
2009 Spesh Allez Elite
2005 Rocky Mountain Element 70
(i realise this guy might not actually hurt himself, but being ready to accept that you may helps a great deal...)