Rome was not built in a day.

Remember, we are all at different stages in our journey. It takes time to get to where you want to be, so do not compare yourself and focus on your goals. 

• The “stages” aren't neat steps, just common experiences people often have when grieving.
• Be patient with yourself. Healing takes time.
• Let it out - cry, talk about them, do activities to help process the grief.
• Cherish happy memories, let go of blame or anger.

Invention often comes in stages and phases, when existing technology is looked at and mixed with new creative insights, a process that sometimes takes thousands of years.

This makes it hard to pinpoint the exact time and place a certain object is invented.