Get another number. at least if your located in California. Your number will be publicly listed and you will get a ton of spam calls.
Set aside $1000 on fees. MLS membership will cost you like $800 a year + $200 for supra key.
Do you have a backup income? Do you have a SO with a steady job? dont expect to make a lot of money. Real Estate is a very unsteady market, you can be doing well one year, and then not make any sales the next. Its really up to the market in your area.