I really feel sorry for how you feel because that should be horrible.
You must understand that you are living for yourself, not for your mother. I know that mothers can get too attached and expect from their children to do whatever they tell to.
But that's wrong because you are a free human being and if you do not like doing something, you should stop it right away.
You see, you listened to your mum and continued education and now look in what state you are. This is because you are trying to live your mother's rather than your dream.
You should definitely start earning income, quit those useless studies and do whatever feels good to you. Only then you will find true happiness.
Your mother still has a very limiting belief about education. But many people do. They think that only if you finish education you will be successful. That is so wrong.
I know that you may feel guilty because by doing what you love you will let your mother down. But you should also realise that you are stuck and your mum has to support you because you followed your mother's advice.
If your mother does not understand that you are a completely free person and you can do whatever you like, then it is her problem, not yours.
I know that my advice is controversial but believe me I have seen too many lives wasted exactly because of the situation you are facing.