u/Cultural_Mud7853

So for the first time at 30 years old I’ve decided to start investing and I really don’t know what I’m doing. So I’ve maxed my Roth IRA and opened a personal taxed brokerage, but my Ira is now saying I have $40 of buying power. Can I re invest that or do I pull it out? Is that like money I’ve made just from having these stocks? Also have no idea if it’s dividends or where the money came from. Thank you in advanced I am a noob.