Should I accept the help? (People with physical disabilties)?

Stop thinking of it as help. It is not help, it is an accommodation. It allows you to not be so different - to be able to work on a fair level playing field. Would you rather fail? That is different. That is a difference that will prevent you from having the fullest life possible. Than who/ what will be to blame? Your disability? No your unwillingness to accept accommodations so you can succeed to your best capabilities.