It is not recommended to include any statements between the sections of  ‘try’, ‘catch’, and ‘finally’ blocks, since they form one whole unit of the exception handling mechanism. 
try
{
    //Code which is monitored for exceptions.
}
//You can’t keep statements here
catch(Exception ex)
{
    //Catch the exceptions thrown by try block, if any.
}
//You can’t keep statements here
finally
{
    //This block is always executed irrespective of exceptions.
}

https://plumbingadvice24.com/how-to-install-abs-pipe-and-fitting/

Trailhead modules.
Hello
I have been doing trailhead modules and challenges.  I am hoping I could sit one of the certification tests one day.
It is hard to keep motivated - will there be a job at the end of this???? 
I am based in Melbourne Australia and have many years ERP programming experience.  Thank you.