Will be switching my Job, infact planning to move to a new role altogether

Hi,
My DOB is 24th July 1984 . I am a software Engineer with 11 years of experience, and planning to move to a new Role in a new company this year, though in the Software field only. I am highly stressed as this Role is totally new , and I won't be having any experience in this , though I have started studying for it. How are the prospects for me to switch to a new company. And also how will that new Role and new Organisation, will be for me.