Success operating ONLY as a Listing Agent?

[Account Closed]

Hello Team BP! I've completed my Sales Agent courses and am set to test for my Texas License in the next 30-45 days. Since I'm still dependent on my W-2 income, I'd like to start Part Time as a Listing Agent, meeting customers in the afternoons and on weekends (as well as hosting open houses), until I get a few wins under me - then I can go full time. My question is, is it realistic to be successful operating only as a Listing Agent?