Standard deduction giving me HUGE refund

Good morning ðŸŒž

I am faced with what I see as advice to take a HUGE handout on turbo tax; I generally itemize my deductions, and that has given me a modest return.  This year, turbo tax has calculated that I take the standard deduction, where I will then get over $18k back.  I'm alarmed at this; I feel this would subject me to an immediate audit, and don't think I should take it.  I will not see this again, as next year my filing will change to single as I will be divorcing before the year's end.  What would this mean for me to have this kind of income listed for this past year, when I will be facing everything on my own next year?  Seriously HUGE alarm bells ringing for me on this kind of handout.... 

KrGY8888