I admire you for being a teenage entrepreneur. It shows your courage and ambition.
To answer your question regarding motivation, let me share you my experience. When we start (any) project, we get motivated by goals that are ambitious, but also seem to be very far from us at the beginning.
The key to maintain high level of energy in the meantime is to celebrate every single small achievement or milestone you conquer towards your obejctive, conscious that every step, even baby steps are putting you closer to your main goal.
So don´t wait to get your final success to be happy, embrace and enjoy the journey, celebrating every single step of the process and sharing it with your network and peers. People reacts positively to those that are working hard to progress, and you´ll get unexpected support from them.
Have fun and wish you the best!
I have a 15 year old daughter that started a cosmetic business this year. She was so excited at first, then she lost her focus with school and teenage responsibilities. For her I had her to set up her plan. We celebrated every sale and set many milestones along the way. I call them feel good accomplishments. We celebrated when her name was approved, we celebrated when she received her federal tax id, we celebrated every sale. We then set financial goals for celebration such as we celebrated the first $1000 sold. Remember the unexpected may rock your boat, but Winners will weather the storm remaining afloat....continue step by step according to your plan.
“Success is stumbling from failure to failure with no loss of enthusiasm.” – Winston Churchill
Good luck and go get em!