Help for future

I am currently in class 10th and have decided to pursue engineering and more specifically SDE. I also thought of quant developer but after researching a bit I found out that quant jobs are very high paced and stressful, which i know I am not capable of handling on a day-to-day business. I wanted to ask what can I do to slowly strengthen my basics for software engineering. I also have started CS50p by harvard a month ago and am 6 weeks into it. Currently I code 1