It doesn't matter how much money you make. If you are paying for your clothes, car, car insurance, personal needs and paying room and board, then you are independent. To claim someone they have to be supplying half of what you make towards your care.
I started a full time job at 18 and lived home. I paid for all my needs and room and board. Paid my own car insurance and bought my own car. I filed income tax and claimed my self. Other than allowing me to live home my parents no longer supported me.
For 2020, the gross income amount from the IRS for determining a dependent is 4,300, most likely not including Social Security.
"Gross Income This includes all income you receive in the form of money, goods, property, and services that is not exempt from tax. It also includes income from sources outside the United States (even if you can exclude all or part of it). Include part of your social security benefits if: You were married, filing a separate return, and you lived with your spouse at any time during the year; or Half of your social security benefits plus your other gross income is more than $25,000 ($32,000 if married filing jointly). If either (1) or (2) applies, see the instructions for Form 1040 and Form 1040-SR, or Publication 915, Social Security and Equivalent Railroad Retirement Benefits, to figure the social security benefits you must include in gross income. If you are married filing separately and you lived in a community property state, then you must include your portion of any community income. This information is found in the Filing Information chapter of Publication 17, Your Federal Income Tax"
I am so sorry, but we need more information to answer your questions. The IRS posts the amount of dependency for support that qualifies you as a dependent for your family when they file their taxes. That was posted to you yesterday on your first question to us. You are asking questions that need more elaboration from you. After you fill in the question line there is a large space where you can tell us your circumstances, and someone will understand your questions.. I am hoping the link below may give you some information. Google "adult dependent IRS rules" and you will come across information. https://www.thebalance.com/claiming-adult-dependent-tax-rules-4129176
https://www.agingcare.com/questions/if-youre-65-and-taking-care-of-yourself-no-one-should-be-allowed-to-put-you-down-as-a-dependent-465821.htm
I started a full time job at 18 and lived home. I paid for all my needs and room and board. Paid my own car insurance and bought my own car. I filed income tax and claimed my self. Other than allowing me to live home my parents no longer supported me.
"Gross Income
This includes all income you receive in the form of money, goods, property, and services that is not exempt from tax. It also includes income from sources outside the United States (even if you can exclude all or part of it).
Include part of your social security benefits if:
You were married, filing a separate return, and you lived with your spouse at any time during the year; or
Half of your social security benefits plus your other gross income is more than $25,000 ($32,000 if married filing jointly).
If either (1) or (2) applies, see the instructions for Form 1040 and Form 1040-SR, or Publication 915, Social Security and Equivalent Railroad Retirement Benefits, to figure the social security benefits you must include in gross income. If you are married filing separately and you lived in a community property state, then you must include your portion of any community income.
This information is found in the Filing Information chapter of Publication 17, Your Federal Income Tax"
Google "adult dependent IRS rules" and you will come across information.
https://www.thebalance.com/claiming-adult-dependent-tax-rules-4129176