I have kinda glanced through this thread about your progression to achieve sub 10 over the last year and as you've mentioned, you've seemed to have lost some motivation to cube and I don't blame you, achieving sub 10 takes years of hard-core dedication and learning. I started cubing 3 years ago and lost interest for about a year in between and haven't progressed past the lower 20s since I had begun. Balancing education and the many other occurrences in life only add to this challenge and I'm guessing that you've come to understand this through your cubing progression. I'm started many other projects like this in my life and some I simply couldn't continue due to the lack of motivation and preserverance I had. As time goes on the challenge does in a way become harder mentally, but it all comes down to how much you want to achieve your goal. But you also need to be mindful of your other goals in life and most importantly, get your priorities straight, which, when looking back through this thread, it seems that you have with your education and studies. So what I'm trying to say is if you really want this, your gonna have to go in and stay in this with a mindset ankowledging how hard it will be, and how much effort you'll have to put in mentally, which you seem to have done quite well throughout this past year. Im not trying to criticize you or condemn you for taking breaks or loosing interest, but I want you to know that although learning CFOP, practicing algorithms, improving finger tricks, learning look ahead, developing full OLL and PLL recognition, and learning more tips and tricks to effectively execute your solves are very important, the most important is acquiring a level of preserverance and motivation that can get you through thick and thin when achieving your goal. Either way, if you decide to continue your goal of sub 10 or just casually cube, the decision is completely up to you and what you feel is worthwhile.