Within your school community there may be other parents who would welcome the opportunity to form their own support group. Speak to your school Special Needs Co-ordinator who may be able to facilitate this.
A group called Doorway meets every Friday during term time at the Kings’ Project in Mildenhall. It is not a group for children with SENd, but it a parent support group.
You may also want to consider joining the Suffolk Parent Carer Support network which has forums and newsletters as well as the opportunity to become more involved and have your voice heard on issues that affect you, your child and family.