Good evening, why wont the page allow me to choose various expeses?

I would suggest you clear cache and cookies on your web browser.  

If you are filing with TurboTax online, please follow these steps:

• Check your internet connection.  Try to log out and sign back in the program. 
• Clear your cache and sign back into the program.  To clear cache, click here: Cache
• You may also try a different browser.

If that doesn't help, without seeing your program, it's hard for me to help you remotely.  I would suggest you consider using TurboTaxLive to file your 2019 taxes.  This way you could have one of our tax professionals to review your tax forms to make sure everything is correct. 

To upgrade to TurboTax Live, click here: https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-get-turbotax-live/00/27305

If you are in the ONLINE Self-Employed software there is an area at the bottom of the page to add additional expense categories.