We applaud your efforts. We can avow 100% that each and every letter she receives will make her day. You have good instinct asking about how much happiness you want to share for fear of bumming them out. You have to know the person. We have always liked the super-positive, optimistic letters that speak of hope and encouragement about the future. Promote good times to come and give them some incentive to try some new areas of educating themselves. Promote the idea of self-improvement through reading. If you want to accelerate your interaction through speaking, you can set up a telephone account. Or, keep writing and suggesting her to respond with some things "she'd like to see in herself" so that you can promote the goals she mentions. We love magazine subscriptions and book. Magazines allow for new information coming monthly in their areas of interest or entertainment. Books can literally set them free. Reading is the great escape.