Student looking to use his time in a useful and effective manner

I’m a high school student, I’m graduating in June 2025. I’ve worked last summer in an oil company in Libya and helped in databases and designs and everything, the company was still starting up. I enjoyed the working experience and I am eager to continue working while studying and improve my time management skills while earning the rewards of the hard work. I don’t submit a single piece of work until I’m sure it is perfect in my eyes. Yes, I will need time to learn at the beginning but over time I will dedicate myself to be the best employee to have ever worked for you....