Question

evaluate and discuss the negative impact of youth risk behavior on your self and other social, economic, physical and emotional/mental

Answer 1

I will choose one youth risk behaviour: excessive drinking.

As far as "yourself" is concerned - this you have to answer on your own!
but the influence on other aspects could be:
-social: it pressures others to drink, it disrupts communities
-economic - the families of people with alcohol problem might be affected by the lack of money
-psychical- it destroys health
-emotional - it is an attiction  that disrupts life