What two factors play a key role in causing mental illness

There are many different factors but some include:

However when it comes to a mental disorder, use of drugs might be a cause

answer; estimate the number between the highest and lowest number; ///

5 make a schedule.

2 break up the project into simpler tasks.

3 prioritize tasks.

1 create an action plan.

4 delegate work\

i think this is in order. hope it : )