yeah make sure you take the valve out of the tyre before you do anything, then put the wheel on the change put the blade in behind the wheel rim. and put down on the lever. turn the wheel about quarter turn do the same until the tyre bead drops then turn the wheel over do same .. once this is done if work between 9 and 3 as a clock face. it is easier press tyre into centre of rim. around the 9 O clock and use lever to lever tyre over rim at the 3 O clock. keep working aroung the tyre until the bead on that side if of the rim. the go back to the same process. and lift the tyre and start to lever the lower bead over. only practice will help you more and realy find your own technique.