My mother gets really angry when i fail but it felt like my best. What should i do? I am close to graduating but still failing

Try and see it from her point of view. Try to see the teacher who teach the subject I know it's hard to do. You can achieve what ever you put your mind to. No matter how hard it is. It will get better their is always the light at the end of the tunnel. It may look far away now but you just have to continue. It may be baby steps that you take but it will get easier don't brush it. Good things come in time it is not worth rushing it. It may seem far away and a waste of time but the reward at the end is the best feeling ever

well my personal experience is that they get mad because they know what you can do and how amazing you can be and they are seeing you fail it puts stress on the parent because they think they are not doing a good enough job raising you they react when you fail because they care for you and they want the best for you in life and I don't think any parent likes seeing their babies fail Its not truly your fault you just should put yourself in their shoes and think how they feel about this situation and reach out to them to find a way to see if they can help