IT employment for 40 years old men?

Hi,

in 2 years I will be 40yo. For those who are in the 30s, you probably wonder the same as me : Can a 40 years old compete with all the young gurus?

Some people advice me to get away from IT field because it is imploding. Others told me to get a degree or ITIL certification and steps into management.

What is your opinion?