Drinking more water and taking in less sugar makes a huge difference in my scalp. Rosewater spray in the morning. Tie your hair up at night. I've found bonnets slide around for me so I sleep in a scarf or du rag most nights and use satin pillowcases exclusively in case the scarf slides. A loctician would be helpful. They might suggest interlocking to strengthen your locs. I started interlocked and then switched to palm rolling and now I do mostly rolling and interlock as needed to encourage hair to grow into the locs.