Access to support systems is crucial. You will also need access to knowledge. You will need the parents to be on side with you. Encourage them to be accessing and exchanging information with you. Don't be afraid to ask for help.
Teachers are too often willing to soldier on without asking for help.
This does not do you any good in the long term. Sick and worn out teachers are a loss to children. So speak up. Say when you need help and advice. Use the child as a resource.