After your brain’s had a break via texting, your next baby step back in to conversation with them could be recorded voice messages in the privacy of your room which you send to them. Since you’re away at university anyway, it might actually work well. Or maybe not. Not sure what your situation is really like, but it’s another idea. Also, it might be worthwhile to translate your post here into Arabic for your parents so that your mother can understand better how you feel when she says things like the solution is in your hands. People who don’t stutter don’t know what it’s like so they may say things from a good heart but the outcome is not positive. But it’s not their fault. They simply don’t understand what stuttering is really about so you have to help educate them. Good luck. Hang in there. Things will get better.