plz solve my problem

i have htc one m7 and i am tring to root it .i did all the process of rooting from XDA fourms mean first unblock bootloader then flash custom recovery then i copy the supersu zip in the phone memory now tring to run the zip but i cant go to recover i can only go to boolloader mood when i click recovery i say entering recovery ...................... and i am waiting for hours but no response .plz any one can help