Help for our son

We adopted our son almost 6 years ago. He was four years seven months at the time, but his mom could no longer manage parenting him. We were told that he had not attached well to his birth mom which meant that we would have to work extra hard to teach him how to love and get over his past hurts. We have worked extremely hard over these past six years to help him heal from this early trauma, but we still have a ways to go. We've exhausted our options locally, but we have found someone who's had great success with cases like ours. We started the process, but are limited by the cost of $300/ week. These weekly therapy sessions by phone are not covered by insurance,  and are our best chance for successful healing for him.  We had funding worked out for the first two months, and our goal will give us about six additional months. We were told it could take up to 12 months. We appreciate any and all donations as well as prayers for our son's healing.