Start thinking like the owners of the business, doing your work to great quality and staying the course of a difficult task or project until it is fully completed.
Build that muscle. Stick to it until it is done. Put in the hours, meditate on possible solutions, and chat about your work, testing the richness of your knowledge.
Dedication is a habit, not necessarily a skill, and it doesn't work like magic.
If you are not dedicated to your job and committed to what you have in your hands right now, when you build your own company, you won’t have the dedication needed to sustain it. And that's because you did not build the habit when you had the chance.
Your job right now is a lab for so many things that the future will demand of you later.
Know this and know peace.
The Bible warns us not to look back at old friendships or any relationships that God has delivered us from. Lot's wife did and literally became stuck in time. My prayer is that when you're tempted to return to the past, the spirit reminds you there's so much more ahead of you!