Ok the first thing that i have to suggest is to

• go on a manual handling course, so that u get tort how to lift your mum correctly.
• Speak to your doctor to get some pain relif and to make sure your not damaging ur back
• Do u have any1 else to help u bro's sis's dad ect. if so tell them about your pain and see if they can help you lift her.
• Make sure your school know of your situation, and if you are needin a while off school get work off them cuz you dont wanna fall behind
• Is there a nurse that comes and visits your mum that you could talk to about maybe getting some lifting equimpent so that you dont damage your self.

How old are you?

I hope this helps you,

WB love Kiwi