There are a few ways to make hot glue stronger:

1. Use a higher temperature setting on your glue gun. Hotter glue will bond more effectively and create a stronger hold.

2. Use a larger amount of glue for a thicker bond. Adding more hot glue to the surface you are attaching will create a stronger bond.

3. Allow the hot glue to fully cool and cure before putting any stress on the bond. This can take a few minutes, so be patient and allow the glue to fully harden.

4. Clean and prepare the surface before applying the hot glue. Make sure the surface is free of dirt, dust, and debris so that the glue can adhere properly.

5. Consider using a stronger type of hot glue, such as a high-strength or industrial-grade adhesive, for projects that require extra durability.