First of all, you need to find a trade school near your living area that offers cosmetology classes with a focus on beauticians. For getting the detailed information about the accredited institutes near to your location, you can visit the website of National Accrediting Commission of Cosmetology Arts & Science.
If you do not have sufficient source of income to pay for the course, then you can also take help from state financial aid. However, you have to pass GED or a high school diploma for becoming eligible to apply for financial aid.
See if you fulfil the requirements of ACE grant which was created to help those people who do not have sufficient resources to pay the dues for going into the field of cosmetology.
You can also contact The Education Resources Institute, Inc for getting student loan. Check their policy on their website if you qualify for the terms of student loan.
If you want to become a self employed beautician, then you should also take a basic business management or accounting course which will help your business venture.
Try to get the information about the licensing requirements and see if you are eligible to start your own business as a beautician after completing the course at an accredited cosmetology institute.