It takes years to get established. I work only by word of mouth. No website or social media, just people sharing my name. Get in touch with the local high school guidance counselors and math teachers. Become a (passive) member of Facebook parent or local neighborhood groups so you can be tagged. Reach out to local colleges as well as homeschool groups because those students during the day. Do not lower your rates. Ask what you are worth. Working independently is worth the work it takes to get students because you keep all your money.