Take this for what it's worth to you, if you think it makes sense to you. I say - take a break, if it's not enjoyable and if you are not going to lose a great deal by not cubing. There are other important things in life and you only live once.
I know, at my nearly 80 years of age, and with no chance whatsoever of getting decent speeds, and a thumb that gets sore after 50 solves, plus many other hobbies, it's easy for me to say - Take a break. However think about the number of hours spent over the weeks and months. This is of course all fine if you enjoy it and are motivated by improvements etc. But now that's not the case, then a break seems a good way to see how much you miss it later. I have come back each time, and got interested again, but I set my expectations very low. There are many many.. many other important things in life, and many of them are also very interesting and could be even more rewarding.
If you really want to continue, then one way is to explore other related areas. For example, I started getting interested in the design of the hardware, and I analyse the different features, etc and try to learn the theoretical implications, the developments. That can get expensive though.
I make it a slow journey, taking my time and not aiming big. Fast speed in solving is not, to me, the only way to be motivated and to enjoy cubing. I am happy with every little bit of improvement, or just learning something new about cubes, ... And I think this will be a life long journey.
