Where is Turbotax is Sch C input?

I worked for company X from January through the end of March, 2019, then was an independent contractor for them from April through the end of September.   So I got a W-2 and a 1099 from them last year. 

I used Turbotax and it prints out a Sch C that has only my 1099 income and no business expenses because I never came across anything in turbo tax that gave me the opportunity to input business expenses. 

How and where do I input that information?